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Speculative theory
Zodiac KillerAtlas
Crime & Trafficking · Serial killers
The Zodiac Killer is described in reference sources as an unidentified serial killer associated with a series of murders in Northern California. A University of Maryland forensic expert has been publicly associated with a team that reported a possible identification of the Zodiac Killer.
Open the caseTimeline
- 1969 · eventPeak Northern California Zodiac murder and letter period
- 1969 · document_releaseZodiac Killer compilation reel preserved in library holdings
- 1970 · investigationContinued investigation and public correspondence attributed to Zodiac
- 2002 · document_releaseKelleher book on Zodiac correspondence and psychology circulated
- 2012 · amplificationNews coverage of book claiming to unmask an alleged Zodiac suspect
- 2014 · document_releaseGary L. Stewart book tying his father to the Zodiac identity
- 2020 · mutationCommentary questioning myth versus established Zodiac case facts
- 2020 · amplificationRenewed media and academic claims of possible Zodiac identifications