All the Evidence Proving Arthur Leigh Allen Was the Real Zodiac Killer Not Covered in Netflix’s Documentary

The Seawater children say Arthur Leigh Allen confessed

Perhaps the biggest revelation in the Netflix documentary This is the Zodiac Speaking comes via the Seawater siblings sharing that Leigh Allen confessed to being the Zodiac killer to them. David and Connie Seawater also claim Leigh Allen drugged them as children and may have even brought them along to the killings.

According to both, Allen, who was like a father to them, often took them on weekend trips, to the movie theater, and even clam digging. It is during those trips the two believe he committed murders, including murderers that have never been officially linked to the Zodiac Killer.

Connie Seawater shared that in 1991, she went sailing with Allen and asked him if he was indeed the Zodiac Killer, to which Allen responded that if he told her, he’d have to kill her. David Seawater, however, admits that he got a full confession out of Allen – who he spoke to when his health was already declining. In the documentary David Seawater reveals that Allen not just admitted to being the Zodiac Killer, but also drugging them as kids and molesting his sister Connie.

Arthur Leigh Allen took the Seawater kids to all the murder sites

After seeing the 2007 film Zodiac, which stars Jake Gyllenhaal and Robert Downey Jr. as San Francisco Chronicle staffers and Mark Ruffalo as a detective, the Seawater children realized that they had been to all the Zodiac Killer murder sites before the murders took place. “So much in that movie that was scary familiar,” Connie Seawater says in This is the Zodiac Speaking.

In the documentary, Connie Seawater also recalls that Allen took them to a racetrack in Riverside on October 28, 1966. She believes they were drugged while there, and only clearly recalls being led back to the car on October 31. On October 30, on the grounds of Riverside City College, a woman named Cheri Jo Bates was found dead. No connection between her murder and the Zodiac Killer has ever been established.

The murders stopped while Allen was in jail

People who think Arthur Leigh Allen was the Zodiac Killer also point to a crucial piece of circumstantial evidence that seems to support the theory that he was indeed the notorious serial killer. Allen was arrested for child molestation in 1974, going on to spend three years in prison. During that time the murders and the letters the killer used to send to reporters stopped completely.

He was identified in a police lineup

One of the Zodiac killer survivors, Michael Mageau, identified Allen in a photo line-up. However, conflicting testimony from other witnesses meant police could never use this to charge him with the crime.

Police found a suspicious watch in his home

After Allen’s death, police raided his house, and among the items they discovered was his watch, a Zodiac Sea Wolf wristwatch, which had the same logo seen on the killer’s letters and found on one of the crime scenes.