Canadian police official Dwayne McDonald identified the shooter in the Tumbler Ridge attack on 11/2 as Jesse Van Rootselaar, 18, who began transitioning from male to female about six years ago. Rootselaar had previously attended Tumbler Ridge high school, the site of the shooting, but dropped out four years prior.

McDonald stated that Rootselaar shot and killed six people at the school, including a 39-year-old female teacher and five students aged 12-13. Prior to the school shooting, Rootselaar murdered her mother and stepbrother at their home.

Canadian authorities adjusted the death toll from the shooting caused by Rootselaar from 9 to 8, due to a misunderstanding regarding a victim's status.

Police vehicles parked outside the scene of the Tumbler Ridge high school shooting in British Columbia, Canada, on 11/2. *Reuters*

The shooter's motive remains unclear, but officials confirmed she had mental health issues. Police officers had previously visited Rootselaar's home multiple times following calls expressing concern about her mental health.

According to McDonald, Rootselaar possessed a rifle and a handgun, and died from a "self-inflicted wound" after carrying out the shooting. Rootselaar had a gun license that had expired. Authorities had previously confiscated weapons from her home, but later returned them.

The shooting is one of the most deadly mass casualty events in Canada's history. Canadian Prime Minister Mark Carney expressed his profound sorrow.

Tumbler Ridge is a remote town with a population of about 2,400, located in the foothills of the Rocky Mountains in northern British Columbia, over 1,100 km northeast of Vancouver.

Mass shootings are rare in Canada, a nation with stricter gun control laws than the United States. One of the nation's deadliest incidents occurred in 12/1989, when 15 women were killed in a Montreal shooting.

Ngoc Anh (According to AFP, CNN, Reuters)