Category: Unsolved Mysteries

Wednesday Deep Dive: The Cipher That Waited 51 Years: How AI, Obsession, and Three Amateur Sleuths Finally Cracked the Zodiac Killer’s Code

January 21, 2026

AI Cold Case, AI True Crime, Artificial Intelligence, Blog, Crime Investigation, Cryptography, Cybersecurity, Innovation, Technology, Unsolved Mysteries, Wednesday Deep Dive

Reading Time: 17 minutes – The Zodiac’s Z340 cipher stumped the FBI for 51 years. Then a web designer, mathematician, and warehouse worker solved it with AI. This is their story.