Police arrest 32-year-old Peterborough man for August 8th downtown stabbing death

William Weir charged with first-degree murder in death of 27-year-old Jacob Jansen of Peterborough

On August 15, 2023, Peterborough police chief Stuart Betts announced that 32-year-old William Weir has been arrested for the stabbing death of 27-year-old Jacob Jansen on August 8. (kawarthaNOW screenshot of Peterborough police video)
On August 15, 2023, Peterborough police chief Stuart Betts announced that 32-year-old William Weir has been arrested for the stabbing death of 27-year-old Jacob Jansen on August 8. (kawarthaNOW screenshot of Peterborough police video)

Police have arrested and charged a 32-year-old Peterborough with first-degree murder in connection to the stabbing death of a 27-year-old man in downtown Peterborough last Tuesday night (August 8).

Seven days after the homicide, Peterborough police chief Stuart Betts announced the arrest at a media conference at George and Simcoe streets on Tuesday morning (August 15).

Last Tuesday at around 11:30 p.m., police responded to a call for service at George and Charlotte streets where they found a man suffering from a stab wound.

He was transported to Peterborough Regional Health Centre where he died.

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Police later identified the victim as 27-year-old Jacob Jansen of Peterborough.

On Monday, police located and arrested William Weir, 32, of Peterborough and charged him with first-degree murder.

Betts said footage from the closed-circuit television (CCTV) cameras police recently installed in the downtown core “proved to be a vital piece of evidence in this particular investigation.”

VIDEO: August 8 Homicide Arrest

“I would like to recognize the hard work and the many hours of our dedicated detectives who helped to identify this individual (and) gather and validate evidence, all of which culminated in his arrest,” Betts said at Tuesday’s media conference.

“The family of the victim has been notified and has been made aware of the arrest,” he added.

The accused man is in police custody and will appear for a bail hearing later on Tuesday.