Thomas J. Colbert, whose group Case Breakers has spent years investigating the Zodiac case, said his team had discovered the killer s infamous crosshairs symbol on a wooden post in California.
A group of investigators yesterday claimed to have new evidence proving that an Air Force vet was behind the slayings which mainly targeted couples in Northern California in the late 1960s.
One of the most mysterious unsolved crimes in the world is the case of the Zodiac Killer. Although police brought in many suspects after the murders began