Dexter's Dark Influence: Criminologists Warn of TV Show's Link to Real-World Violence

The crime drama 'Dexter,' which follows a blood-spatter analyst who moonlights as a vigilante serial killer, has been linked to at least seven convicted murderers who were influenced by its on-screen depictions of violence, according to criminologists. The show, which first aired 20 years ago, has been identified as a potential 'how-to script' for aspiring killers.

Behavioral criminologist Alex Iszatt noted that 'Dexter' provides a ritualistic framework for individuals with violent tendencies. The character, Dexter Morgan, operates under a strict moral code, killing only those who have evaded justice and meticulously covering his tracks. This portrayal, Iszatt explained, offers a sense of justification and control, allowing viewers to adopt a dual identity: respectable by day, powerful and dangerous by night, akin to a dark superhero fantasy.

Recent cases highlight this concern. In Britain, within a three-month period, two killers styled themselves after Dexter Morgan. Benjamin Day, a forensics student, was convicted of murdering Maria Saceanu after luring her to a plastic-lined 'kill room' in a twisted tribute to the show. He was found to be obsessed with the series and adopted Dexter's modus operandi, even wearing a similar khaki shirt. Shortly before Day's confession, James Desborough was convicted of murdering and dismembering two men, with evidence suggesting his crimes were also inspired by 'Dexter.'

Another case involved a 16-year-old who was convicted of attempted murder after stabbing a schoolmate. Prosecutors revealed the teenager had a 'dangerous interest in killers and killing,' creating video compilations of serial killers, including Dexter. He expressed a desire for the 'admiration' serial killers receive and was found to have a 'hatred for women.' The teenager had also created an AI-generated video of fictional and real serial killers dancing and compiled clips of other fictional murderers, captioning one as 'me btw (by the way),' while mimicking a killer's masked appearance.

Beyond these recent incidents, the show's influence has been noted in other cases. In 2014, Steven Miles was jailed for murdering and dismembering his girlfriend, with his trial revealing a fixation on horror movies and a desire to emulate Dexter Morgan. The same year, Mark Howe was sentenced for murdering his mother; he had used a photo of Dexter with a blood-splattered face as his Facebook profile picture and researched 'Dexter's kill knife' before the attack.

Internationally, Canadian filmmaker Mark Twitchell was dubbed the 'Dexter Killer' after murdering and dismembering a man in 2008, inspired by the series. In 2010, American teenager Andrew Conley was sentenced for strangling his younger brother, having expressed to his girlfriend a desire to be like Dexter. Also in 2010, Havard Nyflot, one of the killers of Faiza Ashraf, claimed inspiration from the show, stating the victim was a 'bad person' who deserved punishment.

Criminologists suggest that 'Dexter' provides a language for individuals to articulate their violent impulses, framing their actions as expressions of an uncontrollable 'Dark Passenger' rather than personal agency. This narrative can offer a psychological distance, allowing individuals to separate their violent urges from their core identity. While the show itself does not create these impulses, it can provide a template and justification for their expression.