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The Military ConnectionPremieres on Nov 21, 2017
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 in the killer’s code that would have been known to only a few when it was written. Sal and Ken find new evidence that may lead to the killer.
The New SuspectAired on Nov 14, 2017
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.
In the late 1960s and early 1970s, the Zodiac Killer, one of history’s most famous unidentified serial murderers, terrorized the San Francisco Bay area in a spree of heinous attacks, sending taunting letters to authorities, some containing ciphers filled with mystifying combinations of letters and symbols. One cipher in particular, known as the Z340, has baffled the greatest minds in cryptology for nearly 50 years—and it continues to draw scrutiny because the Zodiac killer claimed this code contained his real name. HISTORY’S new nonfiction limited series, “The Hunt For The Zodiac Killer” opens up a new investigation into the mystery of this twisted serial assassin. The goal: to crack the code and catch the killer.