Deputy Chief Devin Laforce speaks about the details of the shooting that killed two police officers during a press conference in Edmonton, Friday, March 17, 2023. Edmonton police say a 16-year-old boy who shot and killed two officers on March 16 had been apprehended in November under the Mental Health Act and was taken to hospital for assessment. THE CANADIAN PRESS/Jason Franson

By Ritika Dubey in Edmonton

EDMONTON — A 16-year-old boy who fatally shot two officers at an apartment complex one week ago had been apprehended in November under the Mental Health Act and was taken to hospital for assessment, Edmonton police said Thursday.

Police also said the boy’s gun was the same weapon used in another shooting days before at a nearby restaurant that left a man injured. Deputy Chief Devin Laforce said a bullet casing recovered from the Pizza Hut was forensically matched to the gun recovered from the apartment, and the teen is a suspect in both cases.

“Both events have been served by robust investigations that have followed all lines of inquiry,” Laforce said. “All tips and other investigative avenues were pursued exhaustively by the investigating teams.”

Investigators are working to trace the origins of the gun and how it came to be in the boy’s possession, Laforce said. He said other people could face charges.

“Whoever he got that gun from probably faces some criminal jeopardy,” he said.

The gun has not been linked to any other crimes, Laforce said, and police were not ready to confirm details about the firearm.

The Pizza Hut employee who was shot on March 12 remains in hospital in stable but critical condition, he added.

Constables Brett Ryan, 30, and Travis Jordan, 35, were responding to a family dispute at the apartment complex in the northwestern part of the city on March 16 when they were shot by the teen multiple times.

Police have said the boy also shot and wounded his mother during a struggle for the gun before shooting and killing himself. Laforce said multiple shots were fired at the woman. An autopsy conducted by the Edmonton Medical Examiner on Wednesday confirmed the shooter’s cause of death was a single gunshot wound consistent with being self-inflicted. He said no one else fired shots.

The mother remains in hospital. She is unable to speak but has been able to communicate through writing, Laforce said, and police plan to interview her once she is released. He said all families affected by the shooting have been co-operating with police.

Laforce said investigators continue to believe the boy’s parents, police dispatch and the responding officers were unaware there was a firearm in the home.

“There are many remaining questions about what took place last Thursday,” he said.

Police said they are investigating the youth’s phone and computer. They are also waiting on toxicology results.

Supt. Shane Perka said police could not provide details on the outcome of the youth’s mental health assessment nor any other medical information.

“We don’t have access to that information at this point but it’s certainly things that in the coming days and weeks we will be following up on,” he said.

A spokesperson with Alberta Health Services said any information about what care the boy may have received in hospital could not be publicly released due to privacy rules.

Perka added it is unclear whether Ryan and Jordan knew the teen had been apprehended under the Mental Health Act, although information that police had previously responded to a mental health complaint at the apartment would have been available to them.

Laforce and Perka said police are not releasing the youth’s name at this time to maintain the integrity of ongoing investigations, including into the origins of the firearm.

“The premature release of information complicates our efforts,” Perka said. “We also speak in the interests of multiple families whose lives have been irreparably altered by these events.”

This report by The Canadian Press was first published March 23, 2023.

— With files from Emily Blake in Yellowknife.

This story was produced with the financial assistance of the Meta and Canadian Press News Fellowship.

MONTREAL — Police say two more bodies were recovered Wednesday from the wreckage of a building in Old Montreal that was destroyed by fire last week, bringing the total number of confirmed victims to four.

A Montreal police spokesman said the bodies of the third and fourth victims have been turned over to a pathologist for identification as the search for others continues.

Earlier Wednesday, one of the first two confirmed victims was identified and police said at least five others remained missing in the rubble of the historic building.

Police Insp. David Shane identified the victim as 76-year-old Camille Maheux.

Maheux’s body was recovered from the fire on Sunday evening; a second body was removed from the rubble on Tuesday but has not yet been identified.

“The investigation and search for other victims are ongoing,” Shane told reporters at the scene Wednesday after formally announcing Maheux’s death.

Firefighters and police said a fire tore through the historic stone building early last Thursday.

Shane told a briefing earlier in the day that searchers were targeting areas of the building where the missing people were likely located when the fire started. Searchers used a crane, specialized camera equipment and drones, he said.

Authorities have said identities of victims will only be released after confirmation from two separate methods, including a DNA test or dental records.

Martin Guilbault, a Montreal fire operations chief, said a plan to dismantle the upper floors of the three-storey building was on hold while authorities conducted a more “methodical” search. Authorities, he said Wednesday, would concentrate efforts inside the building.

Shane said the discovery of the body on Tuesday evening “confirms that the cross-referencing of the information collected by investigators allows us to effectively orient the search in the building.”

Police did not provide further details about the second victim pending identification by the coroner’s office and out of respect for families, Shane said. Investigators, he added, have not ruled out the possibility there could be more than five people missing.

“We are well aware that the wait is currently very hard and painful for the families, especially each time we announce the discovery of a new victim in the rubble,” Shane said.

Family and friends have identified some of the missing, including Saniya Khan and her childhood friend Dania Zafar, who were in Montreal for a trip.

An Wu, 31, a neuroscientist doing post-doctoral work at the University of California San Diego who was in Montreal for a conference, has also been reported missing by friends.

Charlie Lacroix, an 18-year-old from the Montreal suburb of Terrebonne, was identified by her father as one of the missing. She had rented a unit in the building on Airbnb with a friend, and Lacroix’s father said his daughter told 911 operators that she was trapped in a unit with no fire escape or windows.

Authorities have not confirmed how many of the missing people were tourists but said they were from Quebec, Ontario and the United States.

The fatal fire has raised concerns over unlicensed Airbnb-type rentals in Montreal. Police have said the building built in 1890 included units that were rented on Airbnb, the United States-based online rental marketplace, which is outlawed in that area by the city.

Montreal’s mayor this week called for Airbnb to stop listing units that don’t have a provincial permit.

This report by The Canadian Press was first published March 22, 2023.

— With files from Mathieu Paquette in Montreal.

Sidhartha Banerjee, The Canadian Press