Series from 2017
Throughout the early 1960s and 1970s, the Zodiac Killer, one of history's most famous unidentified serial murderers, terrorized America in a spree of …
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 suspect with code training emerges.
The hunt uncovers clues that the Zodiac Killer may have served in the U.S. Armed Forces, as the team's supercomputer identifies strange symbols.
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.
The hunt goes into high-gear as the FBI releases secret files on the mysterious Zodiac Killer.
Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders, as the Code Team announces extraordinary news
