Dive into one of the most infamous unsolved cases in American history—the Zodiac Killer. This chilling crime story takes you through the fear that gripped California in the late 1960s as a mysterious serial killer taunted police with cryptic letters and gruesome murders. Despite decades of investigation, the true identity of the Zodiac remains a haunting enigma. Watch as we unravel the timeline, evidence, and theories behind this dark chapter in U.S. crime history.