Zodiologists: Zodiac Killer, Zodiac Killer Letters, Zodiac Killer Suspects, Zodiac Killer Case, This website is dedicated to all Zodiologists interested in exploring the Zodiac Killer case from a different perspective. The Zodiac Killer terrorized San Francisco Bay area in the 1960’s and 70’s and possibly beyond. The Zodiac Killer, who claimed having killed at least 37 people, sent several taunting letters and encrypted messages to the media in California. Most of these Zodiac cryptograms have not been solved until today.