THE COLD FILES
Unsolved · Unforgotten
Case File · Vol. I · Confidential

The dead
still have
questions.

A curated archive of history's coldest, cruelest, and most confounding unsolved murder cases. Open a dossier, walk the timeline, and consult the resident detective — a Claude-powered investigator briefed on every file.

10
Files Open
7
Still Unsolved
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Evidence Board

The Archive

10 file(s) in view
Featured File
1960s · USA

The Zodiac Killer

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Unsolved
1947
FILE #002 — Leimert Park, Los Angeles

The Black Dahlia

A Hollywood hopeful, bisected and drained in a vacant lot.

Open Dossier →1 victim
Unsolved
1996
FILE #003 — Boulder, Colorado

JonBenét Ramsey

A child pageant star found in her own basement on Christmas morning.

Open Dossier →1 victim
Unsolved
1971
FILE #004 — Airspace over Washington State

D.B. Cooper

The gentleman hijacker who parachuted into the storm with $200,000 — and vanished.

Open Dossier →0 victims
Partially Solved (2022)
1948
FILE #005 — Somerton Park Beach, Adelaide

The Somerton Man

A dead man on a beach, a torn Persian verse, and a code no one can crack.

Open Dossier →1 victim
Unsolved
1888
FILE #006 — Whitechapel, East End of London

Jack the Ripper

The gaslit shadow of Whitechapel who invented the modern serial killer.

Open Dossier →5 victims
Unsolved
1922
FILE #007 — Kaifeck, Bavaria

The Hinterkaifeck Murders

Six people axed to death on an isolated farm — while the killer stayed for days.

Open Dossier →6 victims
Unsolved
1970
FILE #008 — Isdalen Valley, Bergen

The Isdal Woman

A charred body in a Norwegian valley, nine aliases, and a suitcase full of scrubbed labels.

Open Dossier →1 victim
Victim Identified (2022), Killer Unknown
1957
FILE #009 — Fox Chase, Philadelphia

The Boy in the Box

A little boy in a cardboard bassinet box, unclaimed for 65 years.

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Arrest Made 2023, Trial Pending
1996
FILE #010 — Flamingo Road, Las Vegas

The Murder of Tupac Shakur

A drive-by on the Strip, a hip-hop icon dead six days later, and 27 years of silence.

Open Dossier →1 victim