The suspect armed with a long gun opened fire Monday before officers returned fire, killing him, police said.
The official, speaking on condition of anonymity as they were not authorized to speak publicly about the case, said the manifesto links the suspect to the "involuntary celibate" or "incel" ideology, a mostly online group of people, primarily men, who believe society unjustly denies them sexual or romantic attention.
Montreal police work the scene of a shooting the day before, in Montreal on Tuesday, June 23, 2026. Photo by AP
The manifesto prompted a warning to police forces across Canada about the possibility of copycat attacks against police officers.
The Quebec coroner identified the alleged shooter as Seth Scott Hatfield, 25, from Lethbridge, Alberta, and identified the two others killed as police officer Mohamed Lamine Benredouane, 34, and Michel Mizrahi, 68, a bystander caught in the crossfire.
