“This is the Zodiac speaking”. With those words, written in a letter to The San Francisco Examiner, a killer was christened and a mystery born that continues to this day. The letter, received by the newspaper on August 4 1969, was claiming credit for 2 sets of recent murders in the Bay Area around San Fransisco. It was the second letter from someone claiming to be the killer, but this time he gave himself his soon to be legendary name — ‘The Zodiac’. More murders would follow, along with more letters to local newspapers and police. The Zodiac’s terrible crimes were being publicly played out in the nation’s newspapers, with each twist and turn holding the American public under a grim spell. And then he stopped. Less than a year after his first murder, the Zodiac killer simply stopped killing. But did the Zodiac killer actually ever exist?