History's Greatest Mysteries
S04E02 Who is the Zodiac Killer?
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?
Season 4 Episodes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
The Loch Ness Monster
Who is the Zodiac Killer?
The Assassination of JFK
The Lost Colony of Roanoke
The Phoenix Lights Phenomenon
The Ark of the Covenant
The "Missingest" Man in America
Blackbeard's Lost Treasure
Decoding the Mysterious Antikythera Mechanism
The Puzzling Pyramids of Egypt
The Hunt for Stolen Nazi Treasure
The Deadly Bermuda Triangle
The Search for Noah's Ark
Who is D.B. Cooper?
The Legend of Bigfoot
Unlocking the Secrets of Stonehenge
The Search for El Dorado
The Mysterious Havana Syndrome
Unlocking the Secrets of the Nazca Lines
The Hunt for Cleopatra's Missing Tomb
TWA Flight 800
The Hunt for Hitler
The Lost Gold of WWII
The Black Dahlia
Gardner Museum Robbery