In the premiere of a chronicle of the hunt for California's Zodiac Killer, wh...
The Hunt for the Zodiac Killer
Season 1 Episode 3: A New Code Uncovered
A mysterious new cipher related to the Zodiac Killer is discovered, while the team's supercomputer uncovers a strange lunar pattern linking the murders. Also: A taunting riddle by the killer may lead to a body; and a second prime suspect...