
S01E01 The New Suspect
A new hunt for the mysterious Zodiac Killer gains unprecedented access to files, unearthing a complicated cypher that may contain the killer’s name, and links between the Zodiac Killer and an unsolved case. A prime...
The hunt uncovers a mysterious new cipher related to the Zodiac Killer, while the team’s supercomputer uncovers a strange lunar pattern linking the killings. A taunting riddle by the killer may lead to a body. A second prime suspect emerges.
A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.