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Mark Twitchell was reportedly fascinated with the Showtime series "Dexter" and aspired to be a serial killer. Twitchell is now behind bars for murdering a man, but authorities believe he intended to kill others.
A journalist reveals the newly released letters that 'Dexter killer' had sent him detailing how he used a honey trap to kill his victims that he met on Plenty of Fish.
Mark Twitchell, a Canadian filmmaker, is dubbed "The Dexter Killer" because of the numerous links between the TV series and his real-life crimes.
A look at the evidence in "The Dexter Killer" case; plus, newly revealed letters from the man police say wanted to be like fictional serial-killer Dexter Morgan.
Police say Mark Twitchell was fascinated by the Showtime series "Dexter." Newly revealed letters offer a rare look at the killer's thoughts.