About this episode Dive deep into the chilling mystery of the Zodiac Killer, a case that has baffled investigators and terrified California for decades. This episode meticulously examines every piece of evidence, every suspect, and every compelling theory, narrated from the perspective of a detective who can't let this case go. Uncover the intricate details and lingering questions that continue to haunt this infamous unsolved file, leaving you with a fresh understanding of why the Zodiac's identity remains one of history's most perplexing secrets.
0:00 On December twentieth, 1968, a young couple was shot and killed on a remote lovers' lane called Lake Herman Road.0:09 This was the first move in a game that would terrorize Northern California for years.0:17 Last week, we examined the JonBenét Ramsey case, a mystery that unfolded inside the four walls of a single house.0:26 The Zodiac case was different.0:29 The killer made an entire region his crime scene, and the public his audience.0:36 The file on the Zodiac is heavy.0:39 Not just with paper, but with fear.0:42 After the Lake Herman Road murders, and another attack at Blue Rock Springs Park, the letters began.0:50 They arrived at the desks of newspaper editors, sent directly from the killer.0:57 He gave himself a name — the Zodiac — and a symbol: a circle with a cross through it.1:04 He proved his claims by including details only the killer, and the police, could have known.1:12 And then came the ciphers.1:14 Cryptograms promising to reveal his identity if we could only crack the code.1:21 A four-hundred-and-eight character puzzle was solved by a schoolteacher in 1969.1:28 But it contained no name.1:30 Just taunts.1:31 This is a pattern you see, but rarely with this level of commitment.1:37 The killer wasn't just committing crimes; he was creating a brand.1:43 He was using the press to build his own myth, turning himself from a common murderer into a terrifying, almost supernatural figure.1:54 He made himself the main character.1:57 So, who was he?1:58 The files always circle back to one name: Arthur Leigh Allen.2:04 A disgraced former teacher.2:06 The circumstantial evidence is… compelling.2:10 A witness placed him near one of the attack sites.2:14 He owned a Royal Quiet DeLuxe typewriter with a font that had similarities to the Zodiac's letters.2:23 He wore a watch with the same Zodiac crosshair symbol.2:27 And then there's the tape.2:30 A conversation, recorded by authorities, where Allen describes, in detail, how he would commit crimes just like the Zodiac's.2:40 His own attorney dismissed it as the fantasy of a man obsessed with true crime.2:47 But listening to it… it feels like more than fantasy.2:52 But here is where the case file turns on you.2:56 For every piece of evidence pointing at Allen, there is another that pulls you away.3:03 His fingerprints were never a match to any found at the crime scenes.3:09 His handwriting was analyzed and found to be different from the Zodiac's distinctive script.3:17 Most damning for the prosecution theory, he had a verified alibi for the night of the most brazen murder — the shooting of taxi driver Paul Stine in the middle of San Francisco.3:32 An employee confirmed Allen was working hundreds of miles away.3:38 You can't be in two places at once.3:41 And then, the final, frustrating clue.3:44 In 2002, forensic science finally caught up to the case.3:49 DNA was extracted from the saliva on a stamp from one of the Zodiac's letters.3:56 This was it.3:57 The moment of truth.3:58 The DNA did not match Arthur Leigh Allen.4:02 It did, however, show a profile consistent with a close relative of Allen's.4:08 A brother?4:09 A cousin?4:10 The test answered one question, but it opened a dozen more.4:15 Allen himself died in 1992, proclaiming his innocence to the end.4:21 So what does it all add up to?4:23 You have a prime suspect who fits the profile perfectly, until he doesn't.4:30 You have physical evidence that points toward him, and forensic evidence that points away.4:38 You have a confession that isn't a confession, and a DNA link that isn't a link.4:44 It's a case built on contradictions.4:48 It’s possible Allen was simply a disturbed individual who enjoyed the attention of being a suspect.4:56 Or maybe, as one former NYPD officer has argued, the entire "Zodiac Killer" persona was a hoax — an elaborate fiction created to cover up a single, more personal murder.5:11 The file remains open.5:13 The San Francisco Police Department never closed it.5:17 The 340-character cipher, another one of his cryptic puzzles, was only partially cracked in 2020.5:26 It revealed more taunts, but no name.5:29 Technology keeps chipping away at the edges of this case, but the center remains empty.5:36 The Zodiac created a ghost, and we are still chasing it.5:41 The story isn't over.5:43 It's just waiting for the next person to open the file and see the one detail everyone else missed.
