Zodiactually: The Real Story of a Fake Serial Killer

What if America's most famous uncaught serial killer was never one man at all? Eddie McNamara — former NYPD officer, 9/11 first responder, and author of Zodiactually: The Real Story of a Fake Serial Killer — joins Mike to argue the Zodiac wasn't a criminal mastermind but a myth stitched together from unrelated crimes, media hunger, and one compromised homicide detective. Drawing on police files, FBI records, court transcripts, and years of cold-calling witnesses, McNamara explains why Vallejo's own investigators never believed the first two murders were Zodiac's, digs into Dave Toschi's documented history of planting fan letters about himself in San Francisco papers, and reassesses Arthur Leigh Allen, the case's most famous suspect. He and Mike also cover the gulf between David Fincher's film and the real record, the glut of self-published theories clogging the true-crime shelf, and what it's like realizing you've stumbled onto an actual overlooked killer while debunking a fake one.

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