A Guy May Have Revealed The Alleged Zodiac Killer’s Identity On Facebook Years Ago After Becoming Friends With Him

Zodiac Killer Gary Poste Facebook photos

Warner Bros.


  • A random guy may have revealed the identity of the alleged Zodiac Killer years before investigators named him as the murderer
  • The man posted captions alluding to Gary Poste’s involvement in the slayings on Facebook photos that were uploaded in 2018
  • Read more crime news here

Law enforcement officials, journalists, and amateur detectives have spent over 50 years attempting to figure out the identity of the man known as the “Zodiac Killer,” and over the span, a wide variety of names have been floated as the potential culprit in a series of slayings that occurred in California in the late 1960s.

On Wednesday, a group of independent investigators became the latest sleuths to come forward with an explosive claim when they asserted they’d uncovered evidence that suggested the Zodiac Killer was an Air Force veteran named Gary Poste. As is the case with previous accusations, the evidence connecting him to the crimes is fairly circumstantial, and while officials familiar with the case are skeptical he was actually responsible for the murders, there’s one man who was familiar with Poste who appears to have floated a similar theory three years ago

Shortly after the group known as The Case Breakers came forward to point the finger at Poste, some internet detectives did some digging and came across photos of him that were posted on Facebook by a guy who apparently befriended Poste and hung out with him on plenty of occasions before he died in 2018.

The man posted multiple captions alluding to Poste’s possible sordid past, and based on the lack of an edit history, it doesn’t appear they were retroactively updated after the news broke this week.

It’s not clear how the man made the connection in the first place, so while it’s tempting to assume Poste admitted he was the Zodiac Killer, he could’ve also just stumbled across his name on a list of suspects on an internet forum and jumped to one hell of a conclusion.

Regardless, it’s still a pretty crazy (and fairly morbid) discovery.

Connor Toole avatar and headshot for BroBible
Connor Toole is the Deputy Editor at BroBible. He is a New England native who went to Boston College and currently resides in Brooklyn, NY. Frequently described as "freakishly tall," he once used his 6'10" frame to sneak in the NBA Draft and convince people he was a member of the Utah Jazz.