Nine Zodiac Killer Suspects And The Disturbing Stories Behind Them

Published December 13, 2022
Updated August 7, 2024

Who Is The Zodiac Killer? The Chilling Case Against Jack Tarrance

Was Jack Tarrance The Zodiac Killer

YouTubeJack Tarrance was accused by his stepson, Dennis Kaufman.

Like Gary Stewart, Dennis Kaufman claimed that the Zodiac Killer had been a member of his family. In 2007, he alleged that his recently deceased stepfather, Jack Tarrance, had been the infamous murderer.

Kaufman offered the FBI several pieces of evidence, including a hood that his stepfather had owned with the Zodiac’s symbol on it, writing samples, a bloody knife, and a roll of film. In addition, he claimed that his stepfather had killed Kaufman’s mother.

Plus, Kaufman claimed that he had even spoken about the Zodiac Killer’s identity to Tarrance, who never denied that he could be the murderer.

Zodiac Killer Robe

San Francisco Police DepartmentThe Zodiac Killer allegedly wore this symbol during the Lake Berryessa attacks.

“If I wrote a book and said ‘I think my stepdad is the Zodiac Killer,’ they wouldn’t f—ing believe me anyway,” Kaufman allegedly told his stepfather, as reported by KQED. Kaufman says that in response, Tarrance just laughed and then quipped, “Why would you put that ‘I think’ on there?”

Tarrance had also served in the Air Force and the Navy and knew about cryptograms. And a handwriting expert seemed to believe that Tarrance’s handwriting bore a strong resemblance to the Zodiac Killer’s.

But Tarrance has largely been dismissed by law enforcement. The evidence that Kaufman gave the FBI was apparently not very compelling, and some investigators have questioned the credentials of the handwriting expert who examined Tarrance’s penmanship.

author
Kaleena Fraga
author
A staff writer for All That's Interesting, Kaleena Fraga has also had her work featured in The Washington Post and Gastro Obscura, and she published a book on the Seattle food scene for the Eat Like A Local series. She graduated from Oberlin College, where she earned a dual degree in American History and French.
editor
John Kuroski
editor
John Kuroski is the editorial director of All That's Interesting. He graduated from New York University with a degree in history, earning a place in the Phi Alpha Theta honor society for history students. An editor at All That's Interesting since 2015, his areas of interest include modern history and true crime.
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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 September 17, 2024.