(CNN) — A team of international codebreakers have solved a 51-year old cipher sent by the Zodiac Killer. The Zodiac Killer terrorized northern California with five murders in the late 1960s, taunting ...

A cipher sent in 1969 by the Zodiac Killer has been solved. In an email to EW Scripps, the Federal Bureau of Investigation confirmed that three "private citizens cracked the cipher." "On Dec. 5, the ...

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.

Add Yahoo as a preferred source to see more of our stories on Google. A San Francisco Police Department wanted bulletin and copies of letters sent to the San Francisco Chronicle by a man who called ...