The letter writer mentions a TV show. It is not clear in the cipher which show he is referring to, but the Chronicle reported that the cipher was sent to the newspaper on Nov. 8, 1969, a few weeks ...

Codebreaker Alex Baber says he used AI to conclude a single suspect, Marvin Margolis, was behind both unsolved cases.

Zodiac Killer and Black Dahlia killer may finally have a single name attached to them, according to explosive new claims that ...

WARNING: GRAPHIC CONTENT. The Zodiak and Black Dahlia killers' identities have remained a mystery for years, haunting ...

SAN FRANCISCO, California — After more than 50 years, the Zodiac Killer’s infamous cipher has been cracked by an international team of code breakers. The code was broken by Australian software ...

Two retired LAPD homicide detectives say that both notorious cases are solved -- with a single culprit -- thanks to the work ...

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 message sent by a brutal serial killer who has never been caught has been cracked more than 51 years after it was sent. This story originally appeared on Ars Technica, a trusted source for ...