Mark Twitchell

Mark Twitchell
Twitchell in an undated photo from his MySpace personal page.
Born
Mark Andrew Twitchell

(1979-07-04) July 4, 1979
Edmonton, Alberta, Canada
Other name"Dexter Killer"
OccupationFormer Filmmaker
Criminal status
Imprisoned at Bowden Institution
Spouses
Megan Casterella
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(m. 2001; div. 2005)​
Jess Twitchell
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(m. 2007; div. 2010)​
Children1
MotiveAlleged desire to reenact the TV series Dexter and their protagonist Dexter Morgan
Criminal charge
First-degree murder Attempted murder
Penalty
25 years to life imprisonment

Mark Andrew Twitchell (born July 4, 1979) is a former Canadian filmmaker convicted of first-degree murder in April 2011 for the murder of John Brian Altinger. His trial attracted particular media attention because Twitchell had allegedly been inspired by the fictional character Dexter Morgan.