Nine Zodiac Killer Suspects And The Disturbing Stories Behind Them

Published December 13, 2022
Updated October 23, 2024

Who Was The Zodiac Killer? The Compelling Case For Arthur Leigh Allen

Zodiac Film

YouTubeJohn Carroll Lynch as Arthur Leigh Allen in the 2007 film Zodiac.

A 2007 film about the Zodiac Killer, Zodiac, portrays a man named Arthur Leigh Allen as a likely Zodiac Killer suspect. But though the movie was a work of fiction, Allen’s connections to the case are very real.

As SF Weekly points out, investigators have been able to tie Allen to a number of the Zodiac Killer’s crime scenes. He lived near Zodiac victim Darlene Ferrin’s workplace and may have stalked her, frequently visited Lake Berryessa, where the Zodiac Killer attacked Cecilia Shepard and Bryan Hartnell, and was possibly in Riverside when Cheri Jo Bates was murdered.

What’s more, Allen owned a distinctive watch that featured the same crosshair symbol that the Zodiac Killer signed his ciphers with and wore on his chest during the Lake Berryessa attacks. Tom Voigt additionally reports on his Zodiac Killer website that Allen told a friend he was writing a novel about a murderer called “Zodiac” who would kill couples at random.

Arthur Leigh Allen

Zodiac Killer FactsArthur Leigh Allen strikes many as a convincing Zodiac Killer suspect.

“The reality is that Allen is the suspect you just can’t quit,” Voigt explained to Rolling Stone. “I just can’t quit that ‘Big Al’… If he wasn’t the Zodiac, he might be responsible for some other murders.”

But though some experts see Allen as a strong suspect, others aren’t so sure. Physical evidence like DNA, fingerprints, and handwriting samples failed to definitively tie Allen to the notorious murder spree.

If not Allen — who died in 1992 — then who was the Zodiac Killer?

author
Kaleena Fraga
author
A senior staff writer for All That's Interesting since 2021 and co-host of the History Uncovered Podcast, Kaleena Fraga graduated with a dual degree in American History and French Language and Literature from Oberlin College. She previously ran the presidential history blog History First, and has had work published in The Washington Post, Gastro Obscura, and elsewhere. She has published more than 1,200 pieces on topics including history and archaeology. She is based in Brooklyn, New York.
editor
Jaclyn Anglis
editor
Based in Brooklyn, New York, Jaclyn Anglis is the senior managing editor at All That's Interesting, where she has worked since 2019. She holds a Master's degree in journalism from the City University of New York and a dual Bachelor's degree in English writing and history from DePauw University. In a career that spans 11 years, she has also worked with the New York Daily News, Bustle, and Bauer Xcel Media. Her interests include American history, true crime, modern history, and science.
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Fraga, Kaleena. "Nine Zodiac Killer Suspects And The Disturbing Stories Behind Them." AllThatsInteresting.com, December 13, 2022, https://allthatsinteresting.com/who-was-the-zodiac-killer. Accessed August 2, 2025.