Update Active Shooter was fatally shot by police in a Hamilton cemetery after 3 killed and two injured in Peel and Halton regions

The 2022 Ontario Homicide Victim List is available here
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Police said the first shootings were reported in Mississauga, in the Argentia Road and Winston Churchill Boulevard area, where one person was killed and another taken to a local trauma centre on September 12th 2:15 pm. The deceased was a Toronto police officer Const. Andrew Hong, 48, a 22-year veteran of the Toronto police force.

Const. Andrew Hong

The suspect who has been identified as 40-year-old Sean Petrie, of no fixed address, fled to a nearby parking lot and, while carjacking a Black SUV, shot the male driver before fleeing the scene. That male was transported to a trauma centre, where he underwent surgery for his injuries. 

Petrie has an extensive criminal record dating back 20 years with convictions for assault, armed robbery, robbery, carrying a concealed weapon, careless storage of a firearm, possession of a loaded prohibited or restricted firearm, possession of property obtained by crime, theft under $5000, failure to comply with a probation order and failure to comply with recognizance. In 2007,  he was placed on the National Flagging System after being deemed a high risk to re-offend.  His last conviction was in 2015 for a Criminal Driving offence.

The second shooting event occurred in Milton, at MK Auto Repairs in a plaza in the in the Main Street and Bronte Street area at around 2:51 p.m. Halton police said one person had been pronounced dead and two others had been taken to hospital. Family and friends of the victim identified him as Shakeel Ashraf.

The Special Investigations Unit (SIU) said Preliminary information suggests the following:

  • At approximately 4:30 p.m. on September 12, 2022, officers from Halton Regional Police Service and Hamilton Police Service located a man suspected to be involved in serious incidents in Mississauga and Milton in the area of York Boulevard in Hamilton.
  • There was an interaction and officers shot the man in Mount Hamilton Cemetery near York Boulevard. Paramedics were called.
  • The man died at the scene.

Seven investigators and two forensic investigators have been assigned to the case. 

Update September 17th
Halton Regional Police Service announced on Sept.17th that Satwinder Singh, 28, of Milton dies of his injuries at the Hamilton General Hospital. Satwinder was an international student from India who was working part-time at MK Auto Repairs at the time of shooting.

The SIU is urging anyone who may have information about this investigation, including video or photos, to contact the lead investigator at 1-800-787-8529 or online at: https://siu.on.ca/en/appeals.php

Anyone with information on these incidents, has surveillance or dashcam footage, that may have captured the moments leading up to, during, or after the incidents are asked to contact investigators at 905-453-2121 extension 3205. Anonymous information may also be submitted by calling Peel Crime Stoppers at 1-800-222-TIPS (8477), by visiting peelcrimestoppers.ca.