Latent // Signal Deck
15 sysLive
Unsolved · Aggregated · Public
6,760 unsolved cold cases
↻ 6d agoOpen cold-case files · 15 jurisdictions · 1911–2025
Public-record cold cases from 15 jurisdictions: parsed, normalized, geocoded, and traced back to the originating public-record entry. Built for the people working the cases no one is assigned to: citizendetectives, journalists, and genealogists.
By jurisdictionN=6,760
OH2796
CO1400
DC703
FL681
VA524
By decade of incident1911–2025
16628310
1662
‹6060s70s80s90s00s10s20s
Geocoded coverage
97.3% 6,580/6,760
Coverage metrics
Dataset v2026.05Geocoded
97.3%
6,580 of 6,760 cases resolved to coordinates. 180 pending geographic resolution.
Temporal span
114 yrs
Earliest dated incident 1911; most recent 2025.
Source systems
15 active
Each jurisdiction's public list ingested independently and kept individually attributable.
Filter dimensions
7
Type, year, city, state, victim gender + race, and map bounding boxes, all composable.
Access surfaces
02 modulesLedger · searchableMOD-01
IDSubjectYrSt
NA25-01741-375313John Doe2025OPEN
3922-Underwood-2Damarius J Underwood2024OPEN
3921-HookerDe Juan L Hooker2024OPEN
3805-EffordJames Eric Efford2024OPEN
The case register
Every record: filterable across jurisdiction, type, demographics, and modus operandi; sortable, paginated, traceable to its source entry.
6,760 records · Open →Geospatial · interactiveMOD-02
Where the cases are
Cases plotted to incident location, clustered by region, cross-filtered against the same ledger query.
6,580 plotted · Open →Provenance
15 sourcesEvery source documented. Every method open.
Analytical access to these records usually lives behind license fees and institutional logins. Latent rebuilds it as open access: normalized, geocoded, and data-source transparent. Data for good, not data for sale.
SourceStCoverageCasesYears
Ohio Attorney General — Statewide Unsolved HomicidesOH100%2,7961943–2024
Colorado Bureau of Investigation — Cold Case DatabaseCO100%1,4001911–2025
Washington D.C. Metropolitan Police — Unsolved HomicidesDC99%7031979–2020
Florida Department of Law Enforcement - Unsolved CasesFL76%6811955–2020
Virginia VSPCCD Cold Case DatabaseVA100%5251961–2023
Utah Bureau of Criminal Identification — Cold Case DatabaseUT99%2071949–2021
New Hampshire DOJ — Cold Case Unit Victim ListNH100%1151960–2015
Minnesota BCA — Unsolved Cases DatabaseMN100%961964–2021
Anne Arundel County, MD Police Department — Cold CasesMD99%751970–2020
Baltimore County, MD Police Department — Unsolved HomicidesMD96%751970–2015
Wyoming Division of Criminal Investigation — Cold Case HomicidesWY100%321974–2018
Howard County, MD Police Department — Cold CasesMD100%231971–2017
Harford County, MD Sheriff's Office — Cold CasesMD100%211981–2021
Wicomico County, MD Sheriff's Office — Cold Cases (Homicides)MD100%61990–2019
Charles County, MD Sheriff's Office — Cold Cases (Homicides)MD100%51980–2008