Mark Twitchell Case: Jess Twitchell's Testimony & Dexter Obsession
Could a fascination with a fictional killer truly lead to a real-life tragedy? Mark Twitchell, a Canadian filmmaker, became infamous as the "Dexter Killer," a chilling moniker reflecting his alleged obsession with the television show "Dexter" and the disturbing parallels between his actions and the show's plot.
Before the shadows of his alleged crimes fell, Twitchell's life had a semblance of normalcy. He pursued his passion for filmmaking, studying at the Northern Alberta Institute of Technology. During his time there, he was involved in a relationship with Traci Higgins. Later, he entered into two marriages, the second of which, to Jess Twitchell, would become a focal point in the unfolding drama. The details of their relationship, exposed in court, painted a picture of a troubled union, shadowed by growing unease and ultimately, by the specter of a horrific crime. In January 2007, Mark and Jess Twitchell exchanged vows, a moment captured in photographs that would later become a poignant reminder of a life irrevocably altered.
Full Name: | Mark Andrew Twitchell |
Date of Birth: | July 4, 1979 |
Nationality: | Canadian |
Known For: | Alleged murder of John Altinger; association with the "Dexter Killer" moniker |
Education: | Northern Alberta Institute of Technology (Radio and Television Arts Program) |
Marital Status: | Divorced (from Jess Twitchell) |
Relationships: | Traci Higgins (dated); Megan Casterella (married 2001-2005); Jess Twitchell (married 2007-2010) |
Career: | Filmmaker |
Legal Issues: | Accused of first-degree murder |
Notable Projects: | Directed a "Star Wars" fan film |
Location: | Greater Edmonton, Alberta, Canada |
Reference: | CBC News - Mark Twitchell guilty of 1st-degree murder |
The date of October 20, 2008, would forever be etched in the memories of those connected to the case. It was on this day that police arrived at the Twitchell's home in St. Albert, bearing news that would shatter Jess Twitchell's world. As she recounted in court, the officers informed her of their suspicions, that Mark Twitchell was allegedly involved in a murder. This revelation marked the beginning of a harrowing journey for Jess, forcing her to confront the devastating reality of her husband's alleged actions and the unraveling of their life together. The Deer Ridge home, once a symbol of their shared life, became a scene of investigation, with police seizing items that would become crucial pieces of evidence.
The alleged victim, John Altinger, met his end in a garage after being lured there. His friend, Dale Smith, held suspicions about the circumstances surrounding Altinger's blind date, the events unfolding just before the Thanksgiving long weekend in 2008. The case against Mark Twitchell centered on the claim that he orchestrated the killing, drawing inspiration from the television show "Dexter," which depicts a serial killer who leads a double life. The parallels between the fictional character's methods and the details of the crime, as alleged by the police, were stark and disturbing, solidifying Twitchell's ominous nickname.
The marriage of Mark and Jess Twitchell, which began in January 2007, was marked by turbulence, a fact that Jess herself acknowledged. Their relationship was strained, the couple often living apart, occupying separate bedrooms and lacking significant interaction. This troubled state persisted until Mark's arrest in the fall of 2008. The divorce proceedings were finalized in December 2010, marking the official end of a union that had been consumed by the events of that fateful autumn.
The case also brought to light Twitchell's earlier marriage to Megan Casterella, which spanned from 2001 to 2005, prior to his relationship with Jess. Throughout this period, his passion for filmmaking intensified, as he pursued his education at the Northern Alberta Institute of Technology. The photos of Mark and Jess on their wedding day, displayed online, stood in stark contrast to the grim reality of the accusations that would later surface. The focus of the investigation was to discover how a man, seemingly with a normal life, could be capable of such a horrific act.
As the investigation progressed, the police interview revealed that Twitchell appeared to possess a high level of energy, despite the late hour. This observation was just a small part of the ongoing assessment of his mental state, as investigators strived to understand the motivations behind the alleged crime. The details of the crime, and the way the police thought that Twitchell committed the crime, led many to label him as the "Dexter Killer".
The exhibition "Sein name ist pferd in the beginning was Ferdinand" by artists Jessica Twitchell and Kristin Wenzel, serves as a testament to a shared childhood dream. However, the narratives intertwined with the life of Mark Twitchell are drastically different, representing the complex layers of the human experience.


