Authorities have identified the suspect in a Montréal shooting as Seth Hatfield, who was reportedly from Alberta. The investigation indicates the attack may have been carried out by a lone actor, and officials say the case is being examined in the context of an incel-linked manifesto found in connection with the incident.
According to the update, Hatfield drove to Montréal from Alberta prior to the attack. Investigators later stated that he was neutralized at the scene, meaning he was stopped during or immediately after the shooting. The report emphasizes that the suspect did not appear to operate with a wider network, framing the incident as a lone-actor event rather than a coordinated group attack.
The update also points to a written manifesto associated with Hatfield. It is described as a document of approximately 104 pages and is characterized as incel-linked, suggesting it may contain misogynistic or extremist ideology aimed at women and may outline motivations connected to violence. The manifesto is being treated as a critical piece of evidence, and investigators are expected to analyze its contents to understand the intent behind the attack.
In the aftermath of the shooting, two people were reported killed. The update identifies Officer Benredouane among the victims, indicating that law enforcement was directly involved and suffered fatalities during the incident. A civilian named Mizrahi is also listed as among the dead. The combination of a police officer and a civilian casualty underscores the seriousness of the event and the risks faced by responders and bystanders.
The summary further notes that the Bureau of Independent Investigations (BEI) is involved in the case. The BEI is tasked with investigating incidents involving police to ensure accountability and to clarify the circumstances surrounding use of force or officer conduct. In this context, the BEI’s role likely includes reviewing what happened during the confrontation with the suspect, how events unfolded at the scene, and whether police actions complied with applicable standards.
While the report provides key identifying information—such as Hatfield’s name and alleged Alberta origin—it also stresses that motive remains under review. Even with the manifesto and the framing of the incident as a lone-actor attack, investigators are still working to confirm the full set of motivations and the precise factors that led Hatfield to commit the violence.
The update presents the manifesto as central to the narrative of motive. It describes themes directed toward women, police, and broader societal targets, implying the document may discuss grievances, hostility, and a justification framework for violence. Investigators are expected to confirm how closely the manifesto aligns with the actions taken during the attack and whether it contains instructions, threats, or references that can help explain the suspect’s choice of targets.
The report also includes a safety-oriented message urging people to stay safe. This appears as part of an informal advisory tone accompanying the news update, reflecting the heightened concern that typically follows major shootings and the need for communities to remain vigilant while authorities continue their work.
As the investigation progresses, officials will likely continue to verify the suspect’s identity, examine the timeline of his travel from Alberta to Montréal, and further analyze the manifesto’s content, including whether it includes planning details, references to real-world events, or indicators of radicalization. They will also examine forensic and digital evidence to corroborate claims about the document and determine whether any other individuals were involved or whether Hatfield acted entirely alone.
In summary, the Montréal shooting suspect has been identified as Seth Hatfield from Alberta. Authorities believe the attack was carried out by a lone actor, with an approximately 104-page incel-linked manifesto playing a key role in understanding potential motive. The suspect was reportedly neutralized at the scene, and the incident resulted in the deaths of Officer Benredouane and civilian Mizrahi. The BEI is investigating the circumstances, and investigators say motive is still being assessed as the evidence is reviewed. Source: Nick
Nick: Update‼️ Montréal shooting suspect = Seth Hatfield (Alberta). Lone actor, incel-linked manifesto (~104 pages) vs women/police/society. Drove from AB; neutralized on scene. Officer Benredouane & civilian Mizrahi killed. BEI investigating motive. Stay safe. Official. #breaking
— @Nickmeta May 1, 2026