The Zodiac Killer terrorized the San Francisco Bay Area in the late 1960s and early 1970s, leaving a trail of victims and cryptic messages that continue to baffle investigators and amateur sleuths to this day. Despite decades of investigation and speculation, the true identity of the Zodiac Killer remains unknown.In this episode, I’ll tell you the facts of the case, including the known victims and the circumstances surrounding their murders, and discuss the evidence that has been gathered over the years.