Parole records reveal Saskatchewan suspect's violent history

Myles Sanderson’s parole documents paint a picture of a violent offender with a long record of assault, alcohol and drug abuse and intimate partner violence.

Myles Sanderson was ordered to stay away from alcohol, drugs

Assistant Commissioner Rhonda Blackmore speaks during a news conference in Regina on Sunday. Damien Sanderson and Myles Sanderson were wanted in connection with the stabbing deaths of 10 people on Sunday morning. Police say they discovered Damien's body on Monday. (Michael Bell/The Canadian Press)

Long before he became the main suspect in a mass killing and the subject of a multi-province alert, Myles Sanderson had a history of explosive violence, according to Parole Board of Canada documents from February of this year.

Sanderson's contacts with the criminal justice system span more than two decades. As an adult, he racked up 59 convictions for assault, assault with a weapon, uttering threats, assaulting a police officer and robbery. Roughly half of the offences were for breaches or failure to comply with pre-existing orders. Because of his violent behaviour, he has a lifetime weapons ban.

Sanderson, 32, was one of two suspects wanted by police after a string of fatal stabbings in Saskatchewan on Sunday left 10 people dead and many more injured. One of the suspects, Damien Sanderson, 31, was found dead Monday. Police are still searching for Myles, who is Damien's brother.

Myles faces three counts of first-degree murder; Damien had been charged with one count of first-degree murder. Both men were also charged with attempted murder and break and enter.

The parole documents paint a picture of a man who struggled with drug and alcohol use in late childhood and note that Myles Sanderson started using cocaine at age 14.

Police officers and coroners stand in a circle in an open area.
Investigators in protective equipment examine the ground at a crime scene in Weldon, Sask., on Sunday. Parole Board of Canada documents show that suspect Myles Sanderson has a history of violence. (Heywood Yu/The Canadian Press)

"You … said that your regular use of cocaine, marijuana, and hard alcohol would make you 'lose your mind' and that you can be easily angered when drunk, but are a different person when sober," the parole documents state. 

The documents contain details of specific moments of rage, including a 2017 incident in which Sanderson forced his way into an ex-girlfriend's home talking about a gang and punched a hole in the bathroom door where children were hiding in a bathtub for protection.

Once outside the home, Sanderson threw a cement block at a woman's car windshield. A few days later, the documents say Sanderson threatened to murder a band store employee and then burn down his parents' home.

Attacked police officer

In 2018, Sanderson stabbed two men with a fork and beat another man until he lost consciousness in a ditch. In June of that year, he repeatedly kicked a police officer in the face while being taken into custody.

The documents also make reference to Sanderson's childhood. His parents separated when he was nine and he grew up in an environment "involving physical abuse, domestic violence and instability."

While incarcerated, Sanderson had trouble following the rules and got in trouble twice for possessing contraband. Despite those issues, in February of 2021, his security classification was reduced and he was transferred to a healing lodge.

Risk assessment tools found Sanderson to be in medium-to-high and high-risk categories to reoffend.

Sanderson was released from minimum security on statutory release in August 2021, according to the documents, but the release was suspended in November of that year when his ex-spouse reported that they had been living together in contravention of the conditions.

The statutory release came with six conditions that prohibited Sanderson from consuming alcohol and drugs, required him to follow a treatment plan for substance abuse and domestic violence, and to refrain from intimate relationships with women without written permission from his parole officer.

Sanderson was also ordered to avoid people involved in criminal activity and drugs and was barred from contact with four people, identified only by their initials. 

Concern about behaviour

The documents state that while on release, Sanderson stayed sober, got a job and was seeing a therapist and was engaged in cultural ceremonies. They note he was working on managing his emotions and felt that his risk factors were manageable in the community. 

But they also noted there were long-standing concerns about his behaviour.

WATCH | Myles Sanderson struggled with alcohol and drugs:

Sask. stabbing suspect had violent history, parole documents reveal

9 months ago
Duration 2:00
The parole documents for Myles Sanderson, one of the suspects in a series of fatal stabbings in Saskatchewan, paint a disturbing picture of an explosively violent offender with a lengthy criminal record.

The February parole documents reveal the board ultimately decided to cancel the November suspension of the release but left a reprimand in his file.

"It is the board's opinion that you will not present an undue risk to society if released on statutory release and that your release will contribute to the protection of society by facilitating your reintegration to society as a law-abiding citizen," the documents state.

By May, Crime Stoppers had issued an alert for Sanderson, who was described as being "unlawfully at large." 

Saskatoon police earlier confirmed they've been searching for Myles Sanderson since then, after he stopped meeting with his assigned caseworker.


Katie Nicholson

Senior Reporter

Katie Nicholson is a multiplatform RTDNA and Canadian Screen Award winning investigative journalist with a strong interest in climate change. She is based in Toronto. Have a story idea? Email: