Gunman was ‘waiting for someone in uniform’ for more than two hours before ‘ambushing’ Toronto officer, police say

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Man police say a Toronto police officer and a Milton mechanic were shot and killed after more than two hours in Mississauga Tim Hortons on Monday after he “ambushed” Const. Andrew Hong, who was teaching a motorcycle course nearby, before leaving for lunch break.

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While the motive for Monday’s shooting rampage through Mississauga and Milton is unknown, investigators with Peel Regional Police said Thursday they believe the gunman — 40-year-old Sean Petrie, who was armed with a handgun — was a The officer was spending his time for the police.

“On the face of it, we believe he was waiting for someone in uniform,” Peel’s police chief Nishan Duraiappa told reporters Thursday in an update on the detailed, multi-jurisdictional investigation.


As previously reported by Star, he attempted to steal the officer’s gun after Petrie shot Hong, but could not get past Holster’s security system.

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Peel Police Det. Mike Mavity said Thursday that investigators are looking into whether Petrie targeted Hong with the intention of taking his weapon, though he said investigators have no evidence to date.

Petrie – who was living out of his car and had a long criminal record – shot five people on Monday in a stampede that lasted two hours, when he himself got into a shootout with police in Hamilton’s cemetery. was badly shot. Ontario’s Special Investigation Unit (SIU), probing Petri’s murder, confirmed on Thursday that police and Petrie had an exchange of bullets before his death.

Investigators are still figuring out why each of the shooting victims was chosen by Petrie, including whether they were targeted or chosen at random.

After shooting Hong, Petrie shot another man in the stomach and stole his black SUV. Petrie then moved on to his former workplace, an autobody shop in Milton. There he killed Shakeel Ashraf, a 38-year-old father of two children, the owner of the shop and shot two others.

Halton Police Chief Stephen Tanner said one of the injured, a 28-year-old international exchange student who works part-time at Ashraf’s autobody shop, was unlikely to survive.

“Sadly, he remains on life support and is not expected to survive,” Tanner said.

Tanner confirmed that Petrie was for some time an employee of the autobody shop, Emkay Auto Repair. Tanner said police were investigating rumors of Petrie’s threats prior to the shooting, but this has not been confirmed.

Investigators have gathered a detailed account of Petrie’s “extensive” criminal past, but there are significant gaps about other aspects of his life, including who he was in contact with and where he was living at the time of the shooting.


According to police, Petri had no definite address and may have been living out of his car at the time – a red Toyota Corolla he drove on Monday and parked next to a Tim Hortons coffee shop.

Police said he was separated from several members of his family, some who had no contact with him for years.

Duraiappa said police were releasing new details about Monday’s shooting to “move the trees a bit” – hoping to encourage new information from people who may know Petri or have information that will aid in the investigation. can do

“Monday’s tragedy was a horrific act of violence that should never happen again,” Duraiappa said.

Tanner said Petrie’s handgun is in the possession of the SIU and Ontario’s Firearms Tracing and Enforcement Unit will work to trace its origin.

Police said Thursday that Petrie had “an extensive criminal record spanning 20 years,” although his last sentence was in 2015 for a felony driving offense.

Peel Regional Police provides updates on the investigation into the murders of Constable Andrew Hong and Mr Shakeel Ashraf and the September 12, 2022 shootings in Peel area and Halton area.

Police said Thursday that in 2007, Petrie was placed on a national “flagging system” for two counts of robbery and at “high risk” for committing the crime again after carrying a concealed weapon.

Details of Petri’s criminal record, including his parole documents, were first reported by the Star.

Police say Petrie shot Hong at close range inside Mississauga Tim Hortons at around 2:15 p.m. Monday, a murder he called an “ambush.”

Police said Hong, in full uniform and riding a motorcycle course, was found dead inside the restaurant.

Petrie was fatally shot by police inside Hamilton Cemetery around 4:30 p.m.

The SIU is investigating Petrie’s death and has named four “subject officers,” two from Hamilton Police and two from Halton. The designation means that the independent investigative body believes it is the officers who may have caused Petrie’s death.

Another 10 Halton officers and seven Hamilton officers have been identified as witnesses.

Mississauga Mayor Bonnie Crombie told reporters on Thursday that Monday’s shootings were “a very dark day in the history of our city.”

The other Mississauga victim, whose vehicle was stolen, is still in critical care at the hospital, she said.

Star shot the victim, identified as Graham Hall, in the stomach, his sister Sue McLeod said.

McLeod said Hall’s Jeep was stolen and Hall was later taken to Sunnybrook Hospital, where he underwent surgery, although the bullet remained inside him. Damage to his lower left side could result in limited mobility as well as a damaged colon that surgeons attempted to repair.

Wendy Gillis is a Toronto-based reporter who covers crime and policing for Star. Reach him by email at [email protected] or follow him on Twitter: @wendygillis


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