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README.md

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+---
+license: mit
+task_categories:
+  - text-classification
+  - other
+language:
+  - en
+tags:
+  - cold-case
+  - unsolved-murders
+  - forensic-analytics
+  - crime-dataset
+  - pecd5
+size_categories:
+  - n<1K
+---
+
+# PEC5D Cold-Case Grid — dataset
+
+Structured dataset for the PEC5D Photonic Entanglement 5D Cold-Case
+Grid: 32 documented unsolved cases (1900s–present) with model-input
+scores, plus entity-layer exports (characters, timelines, scenarios).
+
+**Ethics:** hypothesis lattice only. Not legal evidence. No
+accusations. Sources are public OSINT classes only.
+
+## Files
+
+| File | Content |
+|---|---|
+| `cases.json` | 32 cases: year, lat/lon, type, evidence/motive/jurisdiction/body/genetic/severity/status scores, entity tags, descriptions |
+| `characters.json` | Named people (victims, suspects, POIs, witnesses) with roles and case bindings |
+| `timelines.json` | Per-case dated events |
+| `scenarios.json` | Hypothesis-lattice scenario variants with plausibility weights |
+
+## Schema (cases.json)
+
+```json
+{
+  "case_id": "zodiac_1968",
+  "name": "The Zodiac Killer",
+  "year": 1968,
+  "lat": 37.7749,
+  "lon": -122.4194,
+  "case_type": "serial",
+  "evidence": 6,        // E_i in [0,10]
+  "motive": 2,          // M_i in [0,10]
+  "jurisdiction": 7,    // J_i in [0,10]
+  "body": 1,            // B_i in {0, 0.5, 1}
+  "genetic": 0,         // G_i in {0, 1}
+  "severity": 0.95,     // public impact
+  "status": 0,          // S_i in {0, 0.5, 1}
+  "entities": ["cipher", "letters", "..."],
+  "description": "..."
+}
+```
+
+## Usage
+
+```python
+from datasets import load_dataset
+ds = load_dataset("Codexcoder/pec5d-cold-case-grid", split="train")
+```
+
+## Credit
+
+Derived from publicly documented events; structured as model inputs for
+the PEC5D grid (github.com/onegayunicorn/deepseek-v4-sovereign).

cases.json

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+[
+  {
+    "case_id": "lizzie_borden_1892",
+    "name": "Lizzie Borden & the Fall River Murders",
+    "year": 1892,
+    "lat": 41.7015,
+    "lon": -71.1553,
+    "case_type": "family",
+    "evidence": 4,
+    "motive": 5,
+    "jurisdiction": 1,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0,
+    "entities": [
+      "acquittal",
+      "ambiguous_entry",
+      "axe",
+      "domestic_space",
+      "evidence_contamination",
+      "fall_river",
+      "family_suspicion",
+      "parlor_murder"
+    ],
+    "description": "Andrew and Abby Borden hacked to death with an axe; daughter Lizzie tried and acquitted; no other suspect charged."
+  },
+  {
+    "case_id": "axeman_1918",
+    "name": "Axeman of New Orleans",
+    "year": 1918,
+    "lat": 29.9511,
+    "lon": -90.0715,
+    "case_type": "serial",
+    "evidence": 3,
+    "motive": 1,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.7,
+    "status": 0,
+    "entities": [
+      "axe",
+      "behavioral_signature",
+      "biological_evidence",
+      "coded_communication",
+      "door_panels",
+      "geographic_linkage",
+      "italian_grocers",
+      "jazz_letter",
+      "mythogenesis",
+      "new_orleans",
+      "public_taunting",
+      "serial_killer",
+      "unknown_identity",
+      "weak_body_link"
+    ],
+    "description": "Serial killer murdered at least 8, mostly Italian grocers, using an axe left at the scene; taunted the city with a jazz letter; identity never confirmed."
+  },
+  {
+    "case_id": "hinterkaifeck_1922",
+    "name": "Hinterkaifeck Murders",
+    "year": 1922,
+    "lat": 48.5318,
+    "lon": 11.2608,
+    "case_type": "family",
+    "evidence": 4,
+    "motive": 3,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.75,
+    "status": 0,
+    "entities": [
+      "ambiguous_entry",
+      "bavaria",
+      "domestic_space",
+      "evidence_contamination",
+      "family_suspicion",
+      "isolated_farm",
+      "killer_lived_in_house",
+      "pickaxe",
+      "snow_footprints"
+    ],
+    "description": "Entire Gruber family plus maid bludgeoned with a pickaxe; killer lived in the house for days afterward; no charges ever filed."
+  },
+  {
+    "case_id": "virginia_christian_1912",
+    "name": "Virginia Christian Case",
+    "year": 1912,
+    "lat": 37.4316,
+    "lon": -78.6569,
+    "case_type": "unknown",
+    "evidence": 3,
+    "motive": 5,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.6,
+    "status": 0,
+    "entities": [
+      "electric_chair",
+      "juvenile_justice",
+      "miscarriage_of_justice",
+      "racial_injustice",
+      "virginia"
+    ],
+    "description": "17-year-old executed for killing her employer; perpetrator never definitively identified; widely viewed as a miscarriage of justice."
+  },
+  {
+    "case_id": "stanford_white_1906",
+    "name": "Murder of Stanford White",
+    "year": 1906,
+    "lat": 40.7421,
+    "lon": -73.9894,
+    "case_type": "assassination",
+    "evidence": 6,
+    "motive": 8,
+    "jurisdiction": 1,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.7,
+    "status": 0.5,
+    "entities": [
+      "contested_narrative",
+      "crime_of_passion",
+      "era_forensic_limits",
+      "evelyn_nesbit",
+      "gilded_age",
+      "harry_thaw",
+      "jurisdictional_complexity",
+      "madison_square_garden",
+      "political",
+      "public_witnesses",
+      "trial_of_the_century"
+    ],
+    "description": "Architect shot dead on the rooftop of Madison Square Garden before hundreds of witnesses by Harry K. Thaw; NGRI verdict; deeper conspiracies remain debated."
+  },
+  {
+    "case_id": "black_dahlia_1947",
+    "name": "Black Dahlia \u2014 Elizabeth Short",
+    "year": 1947,
+    "lat": 34.0522,
+    "lon": -118.2437,
+    "case_type": "murder",
+    "evidence": 4,
+    "motive": 2,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.9,
+    "status": 0,
+    "entities": [
+      "1940s",
+      "glasgow_smile",
+      "homicide",
+      "lapd",
+      "los_angeles",
+      "mutilation",
+      "severed_in_half",
+      "unsolved",
+      "young_woman"
+    ],
+    "description": "22-year-old aspiring actress found mutilated, cut cleanly in half, posed in a vacant lot; hundreds confessed; no killer ever identified."
+  },
+  {
+    "case_id": "bugsy_siegel_1947",
+    "name": "Bugsy Siegel Assassination",
+    "year": 1947,
+    "lat": 34.0736,
+    "lon": -118.4004,
+    "case_type": "assassination",
+    "evidence": 5,
+    "motive": 7,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.8,
+    "status": 0,
+    "entities": [
+      "beverly_hills",
+      "contested_narrative",
+      "era_forensic_limits",
+      "flamingo",
+      "jurisdictional_complexity",
+      "las_vegas",
+      "m1_carbine",
+      "mafia",
+      "organized_crime",
+      "political",
+      "public_witnesses"
+    ],
+    "description": "Mobster who built the Flamingo shot through a window; hit widely believed ordered by the Mafia; no one ever charged."
+  },
+  {
+    "case_id": "somerton_man_1948",
+    "name": "The Somerton Man / Tam\u00e1m Shud",
+    "year": 1948,
+    "lat": -34.9285,
+    "lon": 138.6007,
+    "case_type": "unknown",
+    "evidence": 5,
+    "motive": 1,
+    "jurisdiction": 8,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0.5,
+    "entities": [
+      "adelaide",
+      "beach",
+      "coded_communication",
+      "identity_unknown",
+      "mythogenesis",
+      "public_taunting",
+      "rare_book",
+      "tamam_shud",
+      "unbreakable_cipher",
+      "unknown_identity",
+      "weak_body_link"
+    ],
+    "description": "Unidentified man found dead on Somerton Beach; a torn scrap from a rare book read 'Tam\u00e1m Shud'; identity and cause of death unknown; 2022 DNA tentatively linked him to a family."
+  },
+  {
+    "case_id": "carteron_family_1946",
+    "name": "Carteron Family Murders",
+    "year": 1946,
+    "lat": 46.6034,
+    "lon": 1.8883,
+    "case_type": "family",
+    "evidence": 4,
+    "motive": 2,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.65,
+    "status": 0,
+    "entities": [
+      "ambiguous_entry",
+      "domestic_space",
+      "evidence_contamination",
+      "family_suspicion",
+      "france",
+      "isolated_home",
+      "no_robbery_motive",
+      "resistance",
+      "sten_submachine_gun"
+    ],
+    "description": "Four family members gunned down with a Sten submachine gun; no robbery motive; no suspects named."
+  },
+  {
+    "case_id": "boy_in_the_box_1957",
+    "name": "The Boy in the Box \u2014 America's Unknown Child",
+    "year": 1957,
+    "lat": 39.9526,
+    "lon": -75.1652,
+    "case_type": "child",
+    "evidence": 4,
+    "motive": 1,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.8,
+    "status": 0,
+    "entities": [
+      "cardboard_box",
+      "facial_reconstruction",
+      "genetic_genealogy",
+      "phenotyping",
+      "philadelphia",
+      "sealed_identification",
+      "touch_dna",
+      "unidentified_child"
+    ],
+    "description": "Body of a 4\u20136-year-old boy found battered in a cardboard box; 2023 tentative ID via genetic genealogy, details sealed."
+  },
+  {
+    "case_id": "db_cooper_1971",
+    "name": "D.B. Cooper Skyjacking",
+    "year": 1971,
+    "lat": 45.5152,
+    "lon": -122.6784,
+    "case_type": "disappearance",
+    "evidence": 4,
+    "motive": 2,
+    "jurisdiction": 6,
+    "body": 0,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0,
+    "entities": [
+      "boeing_727",
+      "cascade_mountains",
+      "coded_communication",
+      "disappearance",
+      "hijacking",
+      "identity_unknown",
+      "low_forensic_contact",
+      "mythogenesis",
+      "pacific_northwest",
+      "parachute",
+      "public_modeling",
+      "public_taunting",
+      "ransom",
+      "route_ambiguity",
+      "sensor_gap",
+      "unknown_identity",
+      "weak_body_link"
+    ],
+    "description": "Man called 'Dan Cooper' skyjacked a 727, parachuted into a storm over the Cascades with $200,000; only $5,880 of the ransom ever recovered; identity unknown."
+  },
+  {
+    "case_id": "jimmy_hoffa_1975",
+    "name": "Jimmy Hoffa Disappearance",
+    "year": 1975,
+    "lat": 42.3314,
+    "lon": -83.0458,
+    "case_type": "disappearance",
+    "evidence": 3,
+    "motive": 8,
+    "jurisdiction": 5,
+    "body": 0,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0,
+    "entities": [
+      "detroit",
+      "disappearance",
+      "low_forensic_contact",
+      "machus_red_fox",
+      "mafia",
+      "no_body",
+      "public_modeling",
+      "route_ambiguity",
+      "sensor_gap",
+      "teamsters",
+      "union"
+    ],
+    "description": "Teamsters president vanished from a restaurant parking lot where he went to meet two Mafia figures; body never found."
+  },
+  {
+    "case_id": "zodiac_1968",
+    "name": "The Zodiac Killer",
+    "year": 1968,
+    "lat": 37.7749,
+    "lon": -122.4194,
+    "case_type": "serial",
+    "evidence": 6,
+    "motive": 2,
+    "jurisdiction": 7,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.95,
+    "status": 0,
+    "entities": [
+      "bay_area",
+      "behavioral_signature",
+      "biological_evidence",
+      "california",
+      "cipher",
+      "coded_communication",
+      "cryptograms",
+      "geographic_linkage",
+      "letters",
+      "mythogenesis",
+      "public_taunting",
+      "serial_killer",
+      "taunting",
+      "unknown_identity",
+      "unsolved",
+      "weak_body_link"
+    ],
+    "description": "Self-named serial killer murdered at least 5 (claimed 37); sent taunting letters and 4 cryptograms; three ciphers remain unbroken; identity never confirmed."
+  },
+  {
+    "case_id": "jfk_1963",
+    "name": "Assassination of John F. Kennedy",
+    "year": 1963,
+    "lat": 32.7767,
+    "lon": -96.797,
+    "case_type": "assassination",
+    "evidence": 6,
+    "motive": 5,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 0,
+    "severity": 1.0,
+    "status": 0.5,
+    "entities": [
+      "contested_narrative",
+      "dallas",
+      "dealey_plaza",
+      "declassified_records",
+      "era_forensic_limits",
+      "jack_ruby",
+      "jurisdictional_complexity",
+      "oswald",
+      "political",
+      "public_witnesses",
+      "second_gunman",
+      "warren_commission"
+    ],
+    "description": "Warren Commission concluded Oswald acted alone; HSCA found 'high probability of a second gunman'; no second shooter ever identified."
+  },
+  {
+    "case_id": "rfk_1968",
+    "name": "Assassination of Robert F. Kennedy",
+    "year": 1968,
+    "lat": 34.0522,
+    "lon": -118.2437,
+    "case_type": "assassination",
+    "evidence": 7,
+    "motive": 5,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.9,
+    "status": 0.5,
+    "entities": [
+      "acoustic_evidence",
+      "ambassador_hotel",
+      "contested_narrative",
+      "era_forensic_limits",
+      "hypnosis_claim",
+      "jurisdictional_complexity",
+      "political",
+      "public_witnesses",
+      "second_gunman",
+      "sirhan"
+    ],
+    "description": "Sirhan Sirhan convicted, but forensic/acoustic evidence fueled second-gunman claims; Sirhan maintains he was manchurian-candidated."
+  },
+  {
+    "case_id": "mlk_1968",
+    "name": "Assassination of Martin Luther King Jr.",
+    "year": 1968,
+    "lat": 35.1495,
+    "lon": -90.049,
+    "case_type": "assassination",
+    "evidence": 6,
+    "motive": 6,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 0,
+    "severity": 1.0,
+    "status": 0.5,
+    "entities": [
+      "civil_rights",
+      "contested_narrative",
+      "era_forensic_limits",
+      "government_conspiracy",
+      "james_earl_ray",
+      "jurisdictional_complexity",
+      "lorraine_motel",
+      "memphis",
+      "political",
+      "public_witnesses"
+    ],
+    "description": "James Earl Ray pleaded guilty then recanted; a 1999 civil jury found a government-led conspiracy; no broader charges."
+  },
+  {
+    "case_id": "tylenol_1982",
+    "name": "Chicago Tylenol Murders",
+    "year": 1982,
+    "lat": 41.8781,
+    "lon": -87.6298,
+    "case_type": "poisoning",
+    "evidence": 5,
+    "motive": 1,
+    "jurisdiction": 5,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0,
+    "entities": [
+      "chicago",
+      "cyanide",
+      "no_suspect",
+      "product_tampering",
+      "random_victims",
+      "tamper_proof_packaging"
+    ],
+    "description": "Seven died after taking cyanide-laced Tylenol capsules re-shelved in stores; random victims; no suspect ever charged."
+  },
+  {
+    "case_id": "golden_state_killer_1974",
+    "name": "The Golden State Killer / EAR-ONS",
+    "year": 1974,
+    "lat": 38.5816,
+    "lon": -121.4944,
+    "case_type": "serial",
+    "evidence": 10,
+    "motive": 3,
+    "jurisdiction": 6,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.9,
+    "status": 1,
+    "entities": [
+      "behavioral_signature",
+      "biological_evidence",
+      "cold_case_dna",
+      "ear_ons",
+      "former_cop",
+      "gedmatch",
+      "genetic_genealogy",
+      "geographic_linkage",
+      "joseph_deangelo",
+      "phenotyping",
+      "sacramento",
+      "serial_killer",
+      "touch_dna"
+    ],
+    "description": "50+ sexual assaults and 13 murders across California; SOLVED in 2018 via genetic genealogy \u2014 Joseph James DeAngelo, a former cop, pleaded guilty."
+  },
+  {
+    "case_id": "oakland_county_1976",
+    "name": "Oakland County Child Killer",
+    "year": 1976,
+    "lat": 42.6833,
+    "lon": -83.3667,
+    "case_type": "child",
+    "evidence": 5,
+    "motive": 2,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.8,
+    "status": 0,
+    "entities": [
+      "abducted_children",
+      "behavioral_signature",
+      "biological_evidence",
+      "dna_exclusions",
+      "genetic_genealogy",
+      "geographic_linkage",
+      "held_alive",
+      "michigan",
+      "phenotyping",
+      "public_dumping",
+      "serial_killer",
+      "touch_dna"
+    ],
+    "description": "Four children abducted and murdered over 13 months; killer held victims alive for days; main suspect died; no one definitively identified."
+  },
+  {
+    "case_id": "keddie_cabin_1981",
+    "name": "Keddie Cabin Murders",
+    "year": 1981,
+    "lat": 40.0127,
+    "lon": -120.9306,
+    "case_type": "family",
+    "evidence": 5,
+    "motive": 3,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.7,
+    "status": 0,
+    "entities": [
+      "ambiguous_entry",
+      "domestic_space",
+      "evidence_contamination",
+      "family_suspicion",
+      "genetic_genealogy",
+      "new_dna_evidence",
+      "phenotyping",
+      "sierra_nevada",
+      "skull_recovered",
+      "staged_scene",
+      "tina_sharp",
+      "touch_dna"
+    ],
+    "description": "Three Sharp family members and a friend bludgeoned and stabbed; crime scene bizarrely staged; new DNA developed in the 2020s, no charges filed."
+  },
+  {
+    "case_id": "tupac_1996",
+    "name": "Tupac Shakur Murder",
+    "year": 1996,
+    "lat": 36.1699,
+    "lon": -115.1398,
+    "case_type": "assassination",
+    "evidence": 5,
+    "motive": 6,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.9,
+    "status": 0.5,
+    "entities": [
+      "contested_narrative",
+      "death_row_records",
+      "drive_by",
+      "east_coast_west_coast",
+      "era_forensic_limits",
+      "jurisdictional_complexity",
+      "keffe_d",
+      "las_vegas",
+      "political",
+      "public_witnesses",
+      "rap_war"
+    ],
+    "description": "Shot in a Las Vegas drive-by after a Mike Tyson fight; 2023: Duane 'Keffe D' Davis arrested and charged; trial ongoing."
+  },
+  {
+    "case_id": "biggie_1997",
+    "name": "The Notorious B.I.G. Murder",
+    "year": 1997,
+    "lat": 34.0522,
+    "lon": -118.2437,
+    "case_type": "assassination",
+    "evidence": 4,
+    "motive": 6,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.9,
+    "status": 0,
+    "entities": [
+      "bloods_crips",
+      "contested_narrative",
+      "drive_by",
+      "era_forensic_limits",
+      "jurisdictional_complexity",
+      "lapd_connections",
+      "los_angeles",
+      "political",
+      "public_witnesses",
+      "rap_war"
+    ],
+    "description": "Shot in Los Angeles six months after Tupac in a similar drive-by; no one ever charged."
+  },
+  {
+    "case_id": "jonbenet_1996",
+    "name": "JonBen\u00e9t Ramsey",
+    "year": 1996,
+    "lat": 40.015,
+    "lon": -105.2705,
+    "case_type": "child",
+    "evidence": 5,
+    "motive": 3,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.95,
+    "status": 0,
+    "entities": [
+      "1600_persons_of_interest",
+      "basement",
+      "boulder",
+      "evidence_contamination",
+      "genetic_genealogy",
+      "phenotyping",
+      "ransom_note",
+      "touch_dna"
+    ],
+    "description": "6-year-old beauty queen found strangled and beaten in her basement; ransom note for exactly $118,000; family cleared via touch-DNA in 2008, since re-challenged; no one charged."
+  },
+  {
+    "case_id": "sodder_children_1945",
+    "name": "Sodder Children Disappearance",
+    "year": 1945,
+    "lat": 38.0526,
+    "lon": -81.1037,
+    "case_type": "family",
+    "evidence": 3,
+    "motive": 3,
+    "jurisdiction": 2,
+    "body": 0.5,
+    "genetic": 0,
+    "severity": 0.7,
+    "status": 0,
+    "entities": [
+      "abduction_theory",
+      "ambiguous_entry",
+      "domestic_space",
+      "evidence_contamination",
+      "family_suspicion",
+      "house_fire",
+      "human_vertebra",
+      "no_bones_in_ashes",
+      "west_virginia"
+    ],
+    "description": "Five Sodder children vanished the night their house burned; no bones in the ashes; father found a vertebra that matched none of the children; never solved."
+  },
+  {
+    "case_id": "dyatlov_pass_1959",
+    "name": "Dyatlov Pass Incident",
+    "year": 1959,
+    "lat": 61.7556,
+    "lon": 59.449,
+    "case_type": "unknown",
+    "evidence": 6,
+    "motive": 2,
+    "jurisdiction": 4,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.85,
+    "status": 0.5,
+    "entities": [
+      "avalanche_theory",
+      "compelling_natural_force",
+      "hypothermia",
+      "internal_trauma",
+      "kholat_syakhl",
+      "radioactive_clothing",
+      "tent_cut_open"
+    ],
+    "description": "Nine hikers died on Dead Mountain; tent cut from inside, fled barefoot into -30C snow; 2021 Russian reinvestigation concluded avalanche, still contested."
+  },
+  {
+    "case_id": "mh370_2014",
+    "name": "Malaysia Airlines Flight MH370",
+    "year": 2014,
+    "lat": 2.7456,
+    "lon": 101.7099,
+    "case_type": "aviation",
+    "evidence": 3,
+    "motive": 1,
+    "jurisdiction": 10,
+    "body": 0.5,
+    "genetic": 0,
+    "severity": 1.0,
+    "status": 0,
+    "entities": [
+      "aviation",
+      "boeing_777",
+      "debris",
+      "disappearance",
+      "flaperon",
+      "indian_ocean",
+      "international",
+      "low_forensic_contact",
+      "missing_aircraft",
+      "public_modeling",
+      "radar",
+      "route_ambiguity",
+      "sensor_gap"
+    ],
+    "description": "Boeing 777 with 239 people vanished; military radar showed a sharp westward turn then south into the Indian Ocean; only scattered debris ever found."
+  },
+  {
+    "case_id": "madeleine_mccann_2007",
+    "name": "Madeleine McCann Disappearance",
+    "year": 2007,
+    "lat": 37.0875,
+    "lon": -8.7313,
+    "case_type": "child",
+    "evidence": 4,
+    "motive": 2,
+    "jurisdiction": 9,
+    "body": 0,
+    "genetic": 1,
+    "severity": 0.95,
+    "status": 0,
+    "entities": [
+      "christian_brueckner",
+      "disappearance",
+      "genetic_genealogy",
+      "global_coverage",
+      "low_forensic_contact",
+      "missing_child",
+      "phenotyping",
+      "portugal",
+      "praia_da_luz",
+      "prime_suspect",
+      "public_modeling",
+      "route_ambiguity",
+      "sensor_gap",
+      "touch_dna"
+    ],
+    "description": "3-year-old vanished from a holiday apartment; 2020: German police named Christian Br\u00fcckner as prime suspect \u2014 never charged; Madeleine never found."
+  },
+  {
+    "case_id": "gilgo_beach_2010",
+    "name": "Long Island Serial Killer / Gilgo Beach",
+    "year": 2010,
+    "lat": 40.6477,
+    "lon": -73.1447,
+    "case_type": "serial",
+    "evidence": 6,
+    "motive": 2,
+    "jurisdiction": 6,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.85,
+    "status": 0.5,
+    "entities": [
+      "behavioral_signature",
+      "biological_evidence",
+      "craigslist",
+      "genetic_genealogy",
+      "geographic_linkage",
+      "gilgo_four",
+      "long_island",
+      "ocean_parkway",
+      "phenotyping",
+      "rex_heuermann",
+      "serial_killer",
+      "sex_workers",
+      "touch_dna"
+    ],
+    "description": "Bodies of 10\u201316 people dumped along Ocean Parkway; SOLVED IN PART 2023 \u2014 Rex Heuermann charged with 4 murders; investigation continues."
+  },
+  {
+    "case_id": "delphi_2017",
+    "name": "Delphi Murders",
+    "year": 2017,
+    "lat": 40.5875,
+    "lon": -86.675,
+    "case_type": "child",
+    "evidence": 8,
+    "motive": 4,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 1,
+    "severity": 0.85,
+    "status": 1,
+    "entities": [
+      "abby_williams",
+      "cellphone_footage",
+      "down_the_hill",
+      "genetic_genealogy",
+      "indiana",
+      "libby_german",
+      "monon_high_bridge",
+      "phenotyping",
+      "richard_allen",
+      "touch_dna"
+    ],
+    "description": "Teenagers Libby German & Abby Williams murdered while hiking; Libby filmed the suspect; 2024: Richard Allen pleaded guilty to two counts of murder."
+  },
+  {
+    "case_id": "missy_bevers_2016",
+    "name": "Missy Bevers Murder",
+    "year": 2016,
+    "lat": 32.4824,
+    "lon": -96.9945,
+    "case_type": "murder",
+    "evidence": 6,
+    "motive": 2,
+    "jurisdiction": 2,
+    "body": 1,
+    "genetic": 0,
+    "severity": 0.75,
+    "status": 0,
+    "entities": [
+      "150k_reward",
+      "church",
+      "gait_analysis",
+      "no_arrest",
+      "surveillance_video",
+      "tactical_gear",
+      "texas"
+    ],
+    "description": "Fitness instructor found beaten to death inside a church; surveillance shows a suspect in tactical gear; gait heavily analyzed, never matched; no arrests."
+  },
+  {
+    "case_id": "las_vegas_2017",
+    "name": "Las Vegas Shooting (Stephen Paddock)",
+    "year": 2017,
+    "lat": 36.1147,
+    "lon": -115.1728,
+    "case_type": "mass crime",
+    "evidence": 8,
+    "motive": 1,
+    "jurisdiction": 3,
+    "body": 1,
+    "genetic": 0,
+    "severity": 1.0,
+    "status": 0.5,
+    "entities": [
+      "60_dead",
+      "867_wounded",
+      "deadliest_mass_shooting",
+      "mandalay_bay",
+      "no_manifesto",
+      "no_motive",
+      "route_91"
+    ],
+    "description": "Paddock fired 1,000+ rounds into a country music festival \u2014 60 dead, 867 wounded; no motive ever established; why he did it remains unanswered."
+  },
+  {
+    "case_id": "brian_shaffer_2006",
+    "name": "Brian Shaffer Disappearance",
+    "year": 2006,
+    "lat": 39.9834,
+    "lon": -82.9837,
+    "case_type": "disappearance",
+    "evidence": 4,
+    "motive": 1,
+    "jurisdiction": 2,
+    "body": 0,
+    "genetic": 0,
+    "severity": 0.65,
+    "status": 0,
+    "entities": [
+      "columbus",
+      "disappearance",
+      "low_forensic_contact",
+      "never_left",
+      "no_financial_activity",
+      "no_phone_pings",
+      "public_modeling",
+      "route_ambiguity",
+      "security_cameras",
+      "sensor_gap",
+      "ugly_tuna_saloona"
+    ],
+    "description": "Ohio State medical student entered a bar and was never captured leaving on any camera; no financial activity, no phone pings, no body."
+  }
+]

characters.json

@@ -0,0 +1,326 @@
+[
+  {
+    "character_id": "lizzie_borden",
+    "name": "Lizzie Borden",
+    "role": "acquitted",
+    "case_ids": [
+      "lizzie_borden_1892"
+    ],
+    "description": "Daughter tried and acquitted of the axe murders of her father and stepmother."
+  },
+  {
+    "character_id": "andrew_borden",
+    "name": "Andrew Borden",
+    "role": "victim",
+    "case_ids": [
+      "lizzie_borden_1892"
+    ],
+    "description": "Father, hacked to death with an axe."
+  },
+  {
+    "character_id": "abby_borden",
+    "name": "Abby Borden",
+    "role": "victim",
+    "case_ids": [
+      "lizzie_borden_1892"
+    ],
+    "description": "Stepmother, hacked to death with an axe."
+  },
+  {
+    "character_id": "stanford_white",
+    "name": "Stanford White",
+    "role": "victim",
+    "case_ids": [
+      "stanford_white_1906"
+    ],
+    "description": "Famous architect shot on the Madison Square Garden rooftop."
+  },
+  {
+    "character_id": "harry_thaw",
+    "name": "Harry K. Thaw",
+    "role": "convicted",
+    "case_ids": [
+      "stanford_white_1906"
+    ],
+    "description": "Millionaire found NGRI for White's murder."
+  },
+  {
+    "character_id": "evelyn_nesbit",
+    "name": "Evelyn Nesbit",
+    "role": "witness",
+    "case_ids": [
+      "stanford_white_1906"
+    ],
+    "description": "Thaw's wife; her past relationship with White was the motive."
+  },
+  {
+    "character_id": "elizabeth_short",
+    "name": "Elizabeth Short",
+    "role": "victim",
+    "case_ids": [
+      "black_dahlia_1947"
+    ],
+    "description": "22-year-old aspiring actress; the Black Dahlia."
+  },
+  {
+    "character_id": "bugsy_siegel",
+    "name": "Bugsy Siegel",
+    "role": "victim",
+    "case_ids": [
+      "bugsy_siegel_1947"
+    ],
+    "description": "Mobster who built the Flamingo Las Vegas."
+  },
+  {
+    "character_id": "somerton_man",
+    "name": "The Somerton Man",
+    "role": "unidentified",
+    "case_ids": [
+      "somerton_man_1948"
+    ],
+    "description": "Unidentified man found dead on Somerton Beach; Tam\u00e1m Shud."
+  },
+  {
+    "character_id": "db_cooper",
+    "name": "D.B. Cooper (Dan Cooper)",
+    "role": "unidentified",
+    "case_ids": [
+      "db_cooper_1971"
+    ],
+    "description": "Skyjacker who parachuted into the Cascades with $200,000."
+  },
+  {
+    "character_id": "jimmy_hoffa",
+    "name": "Jimmy Hoffa",
+    "role": "missing",
+    "case_ids": [
+      "jimmy_hoffa_1975"
+    ],
+    "description": "Teamsters union president; vanished from the Machus Red Fox lot."
+  },
+  {
+    "character_id": "zodiac_killer",
+    "name": "The Zodiac Killer",
+    "role": "unidentified",
+    "case_ids": [
+      "zodiac_1968"
+    ],
+    "description": "Self-named serial killer; taunting letters and cryptograms."
+  },
+  {
+    "character_id": "jfk",
+    "name": "John F. Kennedy",
+    "role": "victim",
+    "case_ids": [
+      "jfk_1963"
+    ],
+    "description": "35th US president, assassinated in Dallas."
+  },
+  {
+    "character_id": "lee_harvey_oswald",
+    "name": "Lee Harvey Oswald",
+    "role": "suspect",
+    "case_ids": [
+      "jfk_1963"
+    ],
+    "description": "Warren Commission conclusion; killed by Jack Ruby two days later."
+  },
+  {
+    "character_id": "jack_ruby",
+    "name": "Jack Ruby",
+    "role": "convicted",
+    "case_ids": [
+      "jfk_1963"
+    ],
+    "description": "Killed Oswald; the 'Trial of the Century' side-show."
+  },
+  {
+    "character_id": "rfk",
+    "name": "Robert F. Kennedy",
+    "role": "victim",
+    "case_ids": [
+      "rfk_1968"
+    ],
+    "description": "Senator, assassinated at the Ambassador Hotel."
+  },
+  {
+    "character_id": "sirhan_sirhan",
+    "name": "Sirhan Sirhan",
+    "role": "convicted",
+    "case_ids": [
+      "rfk_1968"
+    ],
+    "description": "Convicted; claims he was hypnotized / manchurian-candidated."
+  },
+  {
+    "character_id": "mlk",
+    "name": "Martin Luther King Jr.",
+    "role": "victim",
+    "case_ids": [
+      "mlk_1968"
+    ],
+    "description": "Civil rights leader, assassinated in Memphis."
+  },
+  {
+    "character_id": "james_earl_ray",
+    "name": "James Earl Ray",
+    "role": "suspect",
+    "case_ids": [
+      "mlk_1968"
+    ],
+    "description": "Pleaded guilty then recanted; 1999 civil jury found conspiracy."
+  },
+  {
+    "character_id": "tupac",
+    "name": "Tupac Shakur",
+    "role": "victim",
+    "case_ids": [
+      "tupac_1996"
+    ],
+    "description": "Rapper shot in a Las Vegas drive-by; Keffe D charged 2023."
+  },
+  {
+    "character_id": "keffe_d",
+    "name": "Duane 'Keffe D' Davis",
+    "role": "charged",
+    "case_ids": [
+      "tupac_1996"
+    ],
+    "description": "Arrested 2023 and charged with Tupac's murder; trial ongoing."
+  },
+  {
+    "character_id": "biggie",
+    "name": "The Notorious B.I.G.",
+    "role": "victim",
+    "case_ids": [
+      "biggie_1997"
+    ],
+    "description": "Rapper shot in LA six months after Tupac; no one charged."
+  },
+  {
+    "character_id": "jonbenet_ramsey",
+    "name": "JonBen\u00e9t Ramsey",
+    "role": "victim",
+    "case_ids": [
+      "jonbenet_1996"
+    ],
+    "description": "6-year-old beauty queen found strangled in her basement."
+  },
+  {
+    "character_id": "patsy_ramsey",
+    "name": "Patsy Ramsey",
+    "role": "person-of-interest",
+    "case_ids": [
+      "jonbenet_1996"
+    ],
+    "description": "Mother; reported the ransom note; cleared via touch-DNA 2008."
+  },
+  {
+    "character_id": "john_ramsey",
+    "name": "John Ramsey",
+    "role": "person-of-interest",
+    "case_ids": [
+      "jonbenet_1996"
+    ],
+    "description": "Father; bonus amount matched the ransom demand."
+  },
+  {
+    "character_id": "madeleine_mccann",
+    "name": "Madeleine McCann",
+    "role": "missing",
+    "case_ids": [
+      "madeleine_mccann_2007"
+    ],
+    "description": "3-year-old vanished from a holiday apartment in Praia da Luz."
+  },
+  {
+    "character_id": "christian_brueckner",
+    "name": "Christian Br\u00fcckner",
+    "role": "suspect",
+    "case_ids": [
+      "madeleine_mccann_2007"
+    ],
+    "description": "Convicted sex offender named prime suspect 2020; never charged."
+  },
+  {
+    "character_id": "libby_german",
+    "name": "Libby German",
+    "role": "victim",
+    "case_ids": [
+      "delphi_2017"
+    ],
+    "description": "Teenager who filmed the suspect ('Down the Hill' audio)."
+  },
+  {
+    "character_id": "abby_williams",
+    "name": "Abby Williams",
+    "role": "victim",
+    "case_ids": [
+      "delphi_2017"
+    ],
+    "description": "Teenager murdered alongside Libby on the Monon High Bridge trail."
+  },
+  {
+    "character_id": "richard_allen",
+    "name": "Richard Allen",
+    "role": "convicted",
+    "case_ids": [
+      "delphi_2017"
+    ],
+    "description": "Pleaded guilty 2024 to two counts of murder."
+  },
+  {
+    "character_id": "missy_bevers",
+    "name": "Missy Bevers",
+    "role": "victim",
+    "case_ids": [
+      "missy_bevers_2016"
+    ],
+    "description": "Fitness instructor beaten to death inside a church."
+  },
+  {
+    "character_id": "stephen_paddock",
+    "name": "Stephen Paddock",
+    "role": "deceased",
+    "case_ids": [
+      "las_vegas_2017"
+    ],
+    "description": "Shooter; motive never established."
+  },
+  {
+    "character_id": "tina_sharp",
+    "name": "Tina Sharp",
+    "role": "victim",
+    "case_ids": [
+      "keddie_cabin_1981"
+    ],
+    "description": "Missing fourth girl; skull found 3 years later, 50 miles away."
+  },
+  {
+    "character_id": "axeman",
+    "name": "The Axeman of New Orleans",
+    "role": "unidentified",
+    "case_ids": [
+      "axeman_1918"
+    ],
+    "description": "Serial axe killer; sent the jazz letter to newspapers."
+  },
+  {
+    "character_id": "joseph_deangelo",
+    "name": "Joseph James DeAngelo",
+    "role": "convicted",
+    "case_ids": [
+      "golden_state_killer_1974"
+    ],
+    "description": "Former cop; EAR-ONS solved 2018 via genetic genealogy."
+  },
+  {
+    "character_id": "rex_heuermann",
+    "name": "Rex Heuermann",
+    "role": "charged",
+    "case_ids": [
+      "gilgo_beach_2010"
+    ],
+    "description": "Architect charged 2023 with 4 of the Gilgo Four murders."
+  }
+]

metadata.json

@@ -0,0 +1,11 @@
+{
+  "dataset": "pec5d-cold-case-grid",
+  "version": "1.0.0",
+  "source": "PEC5D Photonic Entanglement 5D Cold-Case Grid (deepseek-v4-sovereign monorepo)",
+  "case_count": 32,
+  "files": ["cases.json", "characters.json", "timelines.json", "scenarios.json"],
+  "splits": {
+    "train": {"num_examples": 32}
+  },
+  "ethics": "Hypothesis lattice only. Not legal evidence. No accusations."
+}

scenarios.json

@@ -0,0 +1,107 @@
+[
+  {
+    "scenario_id": "zodiac_single",
+    "case_id": "zodiac_1968",
+    "label": "Single lone offender",
+    "plausibility": 0.55,
+    "rationale": "Cipher-solver analyses suggest one author; identity never matched."
+  },
+  {
+    "scenario_id": "zodiac_collaborator",
+    "case_id": "zodiac_1968",
+    "label": "Offender with accomplice",
+    "plausibility": 0.2,
+    "rationale": "Multiple simultaneous attacks would need a partner; unproven."
+  },
+  {
+    "scenario_id": "jfk_lone_gunman",
+    "case_id": "jfk_1963",
+    "label": "Lone gunman (Oswald)",
+    "plausibility": 0.35,
+    "rationale": "Warren Commission conclusion; physics of the shots contested."
+  },
+  {
+    "scenario_id": "jfk_second_gunman",
+    "case_id": "jfk_1963",
+    "label": "Second gunman conspiracy",
+    "plausibility": 0.55,
+    "rationale": "HSCA 'high probability of a second gunman'; records still declassifying."
+  },
+  {
+    "scenario_id": "jfk_cover_up",
+    "case_id": "jfk_1963",
+    "label": "Official narrative cover-up",
+    "plausibility": 0.4,
+    "rationale": "Decades of declassification gaps sustain the theory; no direct proof."
+  },
+  {
+    "scenario_id": "jonbenet_family",
+    "case_id": "jonbenet_1996",
+    "label": "Family member intruder",
+    "plausibility": 0.45,
+    "rationale": "Ransom-note oddities and evidence-handling failures; touch-DNA cleared family."
+  },
+  {
+    "scenario_id": "jonbenet_intruder",
+    "case_id": "jonbenet_1996",
+    "label": "Unknown intruder",
+    "plausibility": 0.4,
+    "rationale": "Unmatched DNA sample remains unexplained; case officially open."
+  },
+  {
+    "scenario_id": "mh370_pilot",
+    "case_id": "mh370_2014",
+    "label": "Pilot-directed diversion",
+    "plausibility": 0.45,
+    "rationale": "Zaharie's home simulator; controlled turn pattern; no proof."
+  },
+  {
+    "scenario_id": "mh370_mechanical",
+    "case_id": "mh370_2014",
+    "label": "Catastrophic mechanical failure",
+    "plausibility": 0.3,
+    "rationale": "No distress call; the sharp turn argues against simple failure."
+  },
+  {
+    "scenario_id": "sodder_abduction",
+    "case_id": "sodder_children_1945",
+    "label": "Children abducted, not burned",
+    "plausibility": 0.55,
+    "rationale": "No bones in the ashes; unmatched vertebra; decades of sighting leads."
+  },
+  {
+    "scenario_id": "sodder_fire",
+    "case_id": "sodder_children_1945",
+    "label": "Consumed by the fire",
+    "plausibility": 0.3,
+    "rationale": "Fire intensity could destroy remains; the vertebra contradicts it."
+  },
+  {
+    "scenario_id": "dyatlov_avalanche",
+    "case_id": "dyatlov_pass_1959",
+    "label": "Avalanche / snow slab",
+    "plausibility": 0.5,
+    "rationale": "2021 Russian re-investigation; critics note trauma and radiation unexplained."
+  },
+  {
+    "scenario_id": "dyatlov_military",
+    "case_id": "dyatlov_pass_1959",
+    "label": "Military weapons test",
+    "plausibility": 0.25,
+    "rationale": "Radiation on clothing + area secrecy; no official evidence."
+  },
+  {
+    "scenario_id": "lasvegas_lone",
+    "case_id": "las_vegas_2017",
+    "label": "Lone-wolf with no motive",
+    "plausibility": 0.6,
+    "rationale": "FBI found no manifesto, no links, no co-conspirators."
+  },
+  {
+    "scenario_id": "lasvegas_unexplained",
+    "case_id": "las_vegas_2017",
+    "label": "Unknown motivating factor",
+    "plausibility": 0.4,
+    "rationale": "The largest unanswered question in modern American mass-crime."
+  }
+]

timelines.json

@@ -0,0 +1,577 @@
+[
+  {
+    "case_id": "lizzie_borden_1892",
+    "events": [
+      {
+        "label": "1892-08-04",
+        "description": "Andrew and Abby Borden hacked to death in Fall River.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1893-06",
+        "description": "Lizzie Borden tried and acquitted; no other suspect charged.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "axeman_1918",
+    "events": [
+      {
+        "label": "1918-05-23",
+        "description": "First Axeman attack on the Maggio family, New Orleans.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1919-03-13",
+        "description": "Axeman sends the jazz letter: spared homes playing jazz on Mar 19.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1919-03-19",
+        "description": "Jazz night \u2014 no one died; identity never confirmed.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "hinterkaifeck_1922",
+    "events": [
+      {
+        "label": "1922-03-31",
+        "description": "Gruber family + maid bludgeoned with a pickaxe.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1922-04-04",
+        "description": "Bodies found; evidence of killer living in the house for days.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "stanford_white_1906",
+    "events": [
+      {
+        "label": "1906-06-25",
+        "description": "Stanford White shot dead on the Madison Square Garden rooftop.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1907",
+        "description": "Thaw trial; found not guilty by reason of insanity.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "black_dahlia_1947",
+    "events": [
+      {
+        "label": "1947-01-15",
+        "description": "Elizabeth Short found mutilated in a Leimert Park vacant lot.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1947-01-23",
+        "description": "Personal effects mailed to the press; case never solved.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "bugsy_siegel_1947",
+    "events": [
+      {
+        "label": "1947-06-20",
+        "description": "Siegel shot through a window at Beverly Hills.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "somerton_man_1948",
+    "events": [
+      {
+        "label": "1948-11-30",
+        "description": "Body found on Somerton Beach, Adelaide.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1949",
+        "description": "Tam\u00e1m Shud scrap + unbreakable cipher linked to a rare book.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2022",
+        "description": "DNA tentatively links Somerton Man to a Melbourne family.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "carteron_family_1946",
+    "events": [
+      {
+        "label": "1946-09-16",
+        "description": "Four Carteron family members gunned down with a Sten.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "boy_in_the_box_1957",
+    "events": [
+      {
+        "label": "1957-02-25",
+        "description": "Battered body of a boy found in a cardboard box, Philadelphia.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2023",
+        "description": "Police announce a tentative ID via genetic genealogy (sealed).",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "db_cooper_1971",
+    "events": [
+      {
+        "label": "1971-11-24",
+        "description": "Dan Cooper skyjacks Northwest 305; parachutes into the Cascades.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1980-02",
+        "description": "$5,880 of the ransom found buried along the Columbia River.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2016-07",
+        "description": "FBI formally suspends the active investigation.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "jimmy_hoffa_1975",
+    "events": [
+      {
+        "label": "1975-07-30",
+        "description": "Hoffa vanishes from the Machus Red Fox parking lot.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1975-07-31",
+        "description": "Vehicle found; no body, no remains ever confirmed.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "zodiac_1968",
+    "events": [
+      {
+        "label": "1968-12-20",
+        "description": "First confirmed Zodiac murders, Lake Herman Road.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1969-08-01",
+        "description": "Zodiac letters + first cryptograms mailed to newspapers.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1969-12-20",
+        "description": "Last confirmed murder; three ciphers remain unbroken.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "jfk_1963",
+    "events": [
+      {
+        "label": "1963-11-22",
+        "description": "JFK assassinated in Dallas; Oswald arrested.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1963-11-24",
+        "description": "Jack Ruby kills Oswald on live television.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1964-09-27",
+        "description": "Warren Commission: Oswald acted alone.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1979",
+        "description": "HSCA: 'high probability of a second gunman.'",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "rfk_1968",
+    "events": [
+      {
+        "label": "1968-06-05",
+        "description": "RFK shot at the Ambassador Hotel; Sirhan convicted.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "mlk_1968",
+    "events": [
+      {
+        "label": "1968-04-04",
+        "description": "MLK assassinated at the Lorraine Motel, Memphis.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1999",
+        "description": "Civil jury finds government-led conspiracy; no criminal charges.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "tylenol_1982",
+    "events": [
+      {
+        "label": "1982-09-29",
+        "description": "First Tylenol poisoning death reported, Chicago area.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1982-10",
+        "description": "Seven dead; tamper-proof packaging industry born.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "golden_state_killer_1974",
+    "events": [
+      {
+        "label": "1974-06",
+        "description": "First EAR attacks, Sacramento area.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1986",
+        "description": "Last known attack; 13 murders total.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2018-04-24",
+        "description": "Joseph James DeAngelo arrested via genetic genealogy.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2020-06-29",
+        "description": "DeAngelo pleads guilty; SOLVED.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "oakland_county_1976",
+    "events": [
+      {
+        "label": "1976-02",
+        "description": "First Oakland County child abducted and murdered.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1977-03",
+        "description": "Fourth child found; killer held victims alive for days.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "keddie_cabin_1981",
+    "events": [
+      {
+        "label": "1981-04-11",
+        "description": "Three Sharp family members + friend murdered at Keddie.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1984",
+        "description": "Tina Sharp's skull found 50 miles away.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2020s",
+        "description": "New DNA evidence developed; no charges filed.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "tupac_1996",
+    "events": [
+      {
+        "label": "1996-09-07",
+        "description": "Tupac shot in a Las Vegas drive-by after the Tyson fight.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1996-09-13",
+        "description": "Tupac dies; case unsolved for 27 years.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2023-09-29",
+        "description": "Duane 'Keffe D' Davis arrested and charged.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "biggie_1997",
+    "events": [
+      {
+        "label": "1997-03-09",
+        "description": "Biggie shot in a Los Angeles drive-by; no one charged.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "jonbenet_1996",
+    "events": [
+      {
+        "label": "1996-12-26",
+        "description": "JonBen\u00e9t found strangled in the basement; ransom note found.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2008-07",
+        "description": "Ramseys formally cleared via touch-DNA; later re-challenged.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "sodder_children_1945",
+    "events": [
+      {
+        "label": "1945-12-24",
+        "description": "House fire; five Sodder children vanish; no bones found.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "dyatlov_pass_1959",
+    "events": [
+      {
+        "label": "1959-02-01",
+        "description": "Nine hikers die on Kholat Syakhl; tent cut from inside.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "1959-05",
+        "description": "Last body found; official cause: 'compelling natural force.'",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2021",
+        "description": "Russian re-investigation: avalanche + snow slab (contested).",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "mh370_2014",
+    "events": [
+      {
+        "label": "2014-03-08",
+        "description": "MH370 vanishes en route Kuala Lumpur\u2013Beijing.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2014-03-08",
+        "description": "Military radar: sharp turn west, then south over the Indian Ocean.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2015-07-29",
+        "description": "Flaperon found on R\u00e9union Island \u2014 first confirmed debris.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "madeleine_mccann_2007",
+    "events": [
+      {
+        "label": "2007-05-03",
+        "description": "Madeleine vanishes from Praia da Luz apartment.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2008",
+        "description": "Portuguese police clear the parents.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2020-06",
+        "description": "German police name Christian Br\u00fcckner prime suspect.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "gilgo_beach_2010",
+    "events": [
+      {
+        "label": "2010-12",
+        "description": "First bodies found along Ocean Parkway, Long Island.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2023-07-13",
+        "description": "Rex Heuermann arrested and charged with 4 murders.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "delphi_2017",
+    "events": [
+      {
+        "label": "2017-02-13",
+        "description": "Libby German & Abby Williams murdered; 'Down the Hill' audio.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2022-10",
+        "description": "Richard Allen arrested.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2024",
+        "description": "Allen pleads guilty to two counts of murder.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "missy_bevers_2016",
+    "events": [
+      {
+        "label": "2016-04-18",
+        "description": "Missy Bevers found beaten to death inside a church.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2016-04-18",
+        "description": "Surveillance: suspect in tactical gear; never identified.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "las_vegas_2017",
+    "events": [
+      {
+        "label": "2017-10-01",
+        "description": "Paddock fires 1,000+ rounds into Route 91 festival \u2014 60 dead.",
+        "year": "",
+        "month": ""
+      },
+      {
+        "label": "2017-10-01",
+        "description": "Paddock found dead; no motive ever established.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  },
+  {
+    "case_id": "brian_shaffer_2006",
+    "events": [
+      {
+        "label": "2006-04-01",
+        "description": "Brian Shaffer enters the Ugly Tuna Saloona; never leaves on camera.",
+        "year": "",
+        "month": ""
+      }
+    ]
+  }
+]