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Sal and Ken investigate San Francisco, the epicenter of the Zodiac Killer murders, as the Code Team announces extraordinary news
The hunt goes into high-gear as the FBI releases secret files on the mysterious Zodiac Killer.
A taunting riddle by the killer may lead to a body. A second prime suspect emerges.
Sal and Ken find new evidence that may lead to the killer.
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- Premiered: November 14, 2017
- Rating: TV-14
- Premise: 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. (more)