5 Most Terrifying Serial Killers Still At Large
Presenting the 5 most terrifying serial killer mysteries that no true detective could solve…including the disturbingly punctual February 9th Killer, the gruesome Long Island (Craigslist) Serial Killer, and the Zodiac…

LONDON, ENGLAND – FEBRUARY 24: ‘Mug Shots’ are displayed during the press preview of ‘Forensics, The Anatomy of Crime’ at the Wellcome Trust on February 24, 2015 in London, England. The exhibition contains original evidence, archival material, film footage and forensic instruments relating to the field of forensics, and opens to the public until June 21, 2015. (Photo by Dan Kitwood/Getty Images)
Dan Kitwood / GettyimagesPresenting the 5 most terrifying serial killer mysteries that no true detective could solve...including the disturbingly punctual February 9th Killer, the gruesome Long Island (Craigslist) Serial Killer, and the Zodiac -- the most famous serial killer never caught.