Season 1 | Episode 3: Trick or Treat

When a man goes missing after meeting someone from an online dating site, homicide investigator Bill Clark finds himself in one of the largest cases in Edmonton history. Clark goes deep into the world of Internet homicide and faces the sickening potential that the murder was filmed and for sale to the highest bidder.

Episode preview

Trick or Treat - first look

7 years ago

Duration 1:39

When a man goes missing after meeting someone from an online dating site, homicide investigator Bill Clark finds himself in one of the largest cases in Edmonton history.

What made this case unique?

The Twitchell investigation involved more than 100 police officers and was one of the largest in Edmonton's history. 

The trial was one of the most widely-reported in Canadian history, attracting heavy international media attention. Everyone wanted to catch a glimpse of "The Dexter Killer." 

The case set a precedent for how to smoothly conduct high-profile trials in Canada. In order to balance fairness with a huge public interest, the judge set up the media in a separate courtroom, with a live audio feed — a practice that now serves as a precedent to justify public access to other high-profile cases across the country.

Related news stories

• Jan 09, 2017 | 'Dexter killer' Mark Twitchell among members of dating site for inmates
• Mar 29, 2012 | 'Dexter killer' drops appeal
• Dec 14, 2012 | Twitchell found guilty of 1st-degree murder
• Nov 18, 2011 | Murder, he wrote: Bob McKeown goes inside the secret life of Alberta's "Dexter killer."

About the detective

Staff Sergeant Bill Clark served the Edmonton Police Service for 38 years. He has been awarded the Queen's Jubilee Medal as well as the 20-year Exemplary Service Medal and Kiwanis Top Cop Award Winner in 2003 for outstanding community volunteer.

Cast