He called himself The Zodiac. Beginning in the late 1960s, a shadowy figure began a spree of brutal attacks across Northern California, targeting young couples in secluded areas. But what truly set this case apart was the killer’s obsession with attention. He sent a series of cryptic letters and ciphers to local newspapers, taunting police, boasting about his crimes, and threatening more violence if his demands weren’t met.

With at least five confirmed victims - and claims of many more - the Zodiac Killer left behind a trail of fear, confusion, and unsolved puzzles. Despite decades of investigation, countless suspects, and modern forensic efforts, the killer’s identity remains unknown.

Join us for this 2 part special as we unravel the Zodiac’s crimes, examine the chilling letters and codes, explore the main suspects, and look at the theories that still haunt investigators to this day. This is the story of a killer who turned murder into a game and vanished without a trace.