In 1969, Northern California becomes the hunting ground for one of history's most notorious serial killers, who instills fear in the community. He mocks law enforcement with puzzling ciphers and hints, keeping both the police and the public guessing about his identity for more than five decades. Will recent advancements in evidence and technology be able to decipher his messages? Who exactly is the Zodiac Killer?
Show
History's Greatest Mysteries
Episode
S04E02
Air Date
Feb 06, 2023
Season 4 Episodes
S04E01
The Loch Ness Monster
S04E02
Who is the Zodiac Killer?
S04E03
The Assassination of JFK
S04E04
The Lost Colony of Roanoke
S04E05
The Phoenix Lights Phenomenon
S04E06
The Ark of the Covenant
S04E07
The "Missingest" Man in America
S04E08
Blackbeard's Lost Treasure
S04E09
Decoding the Mysterious Antikythera Mechanism
S04E10
The Puzzling Pyramids of Egypt
S04E11
The Hunt for Stolen Nazi Treasure
S04E12
The Deadly Bermuda Triangle
S04E13
The Search for Noah's Ark
S04E14
Who is D.B. Cooper?
S04E15
The Legend of Bigfoot
S04E16
Unlocking the Secrets of Stonehenge
S04E17
The Search for El Dorado
S04E18
The Mysterious Havana Syndrome
S04E19
Unlocking the Secrets of the Nazca Lines
S04E20
The Hunt for Cleopatra's Missing Tomb
S04E21
TWA Flight 800
S04E22
The Hunt for Hitler
S04E23
The Lost Gold of WWII
S04E24
The Black Dahlia
S04E25
Gardner Museum Robbery