Experts have reportedly solved the code in the 340 Cipher sent to the San Francisco Chronicle in 1969 by the Zodiac Killer, the elusive figure who terrorized the Bay Area decades ago and killed ...

The Zodiac would write notes, often threatening to kill, in a cryptogram composed of bizarre series of letters and symbols. The killer signed the letters with a circle divided by a cross. Subsequent ...

A coded letter from the Zodiac Killer was finally deciphered after over 50 years. A code breaking team tested thousands of ways to crack the code on one of the killer's messages from the late 1960s.