Continuing in the grand tradition of Jack the Ripper and Dusseldorf Vampire Peter Kurten – and foreshadowing BTK – The Zodiac sent the press and the police ingenious and mocking letters publicizing his kills. "This is The Zodiac speaking" became his catch phrase and a circle divided into four quarters by a cross became the symbol that is associated with him even to this day.

Due to his high profile in the media, The Zodiac has spawned at…