1. The mysterious Zodiac Killer, still unidentified
Sometimes nicknamed Gemini, sometimes Scorpio, the enigmatic Zodiac Killer is unquestionably pop culture’s most favourite serial killer. Still at large and unidentified, he terrorised Northern California between 1966 and 1978 with no less than five confirmed murders and possibly another 30 suspected killings. Known for repeatedly taunting the authorities with letters and cryptograms (some of which remain unclear today), his case sparked the interrogation of more than 2500 suspects over the decades and has provided endless terrain for the over active imaginations of directors. The first came in 1971 as Dirty Harry examined the Zodiac Killer’s case. Almost 20 years later, in The Exorcist III, Father Karras is possessed by the tormented soul of the 70s serial killer. In 2007 Jake Gyllenhaal and Mark Ruffalo pull their hair out searching for the murderer in the eponymous movie Zodiac. And on the small screen, his name haunts the characters in Mindhunter as well as season 5 of American Horror Story (Hotel), where the killer – masked – is invited to Devil’s Night.