Jesse Van Rootselaar (August 4, 2007 – February 10, 2026), also known as
Jesse Strang, was identified as the suspected shooter by RCMP deputy commissioner Dwayne McDonald, McDonald stated that Van Rootselaar was a
trans woman who had dropped out of school about four years prior to the shooting. According to McDonald, there was no information to suggest that Jesse Van Rootselaar had been bullied at school. Jesse was estranged from her father, which her father blamed on choices made by her mother. Jesse Van Rootselaar and her siblings had been the subject of custody disputes between their parents, and they had moved between
Newfoundland and Labrador, including the town of
Lawn where Strang grew up, and parts of Western Canada, including
Grande Cache, Alberta and
Powell River, British Columbia, multiple times between 2010 and 2015. Jennifer Strang was in the process of divorcing her husband, who was the father of three of her children (including the 11-year-old son killed alongside her) and who resided in Alberta at the time of the attack.
Interest in guns and violence Van Rootselaar's
YouTube profile picture featured an anime-style mascot and a rifle set against a pink-and-white-striped background. Her
TikTok account, which used the same profile image, featured multiple reposted videos of the transgender mass shooter who
killed six people at a Christian school in Nashville in 2023. In a social media post in , Van Rootselaar's mother "promoted the teenager's YouTube channel... noting that her child 'posts about hunting, self-reliance, guns. A
Reddit account linked to the shooter posted a video in 2023 at a firing range. About five months before the shooting, she created an account on WatchPeopleDie.tv, a
web forum dedicated to
gore videos and violence that has been frequented by multiple other mass shooters, including
Natalie Rupnow, whose profile was visited by Van Rootselaar. Van Rootselaar's posts on the website included multiple photos of firearms, including an SKS rifle and a
KRISS Vector gun, and videos of her firing them. Van Rootselaar created a mall shooting simulator game on
Roblox, according to the platform's administrators. Jesse Van Rootselaar had previously held a valid minor's licence (12–17) for borrowing non-restricted firearms, which only allows for temporarily borrowing a
non-restricted (ordinary rifle or shotgun) firearm for approved purposes; it had expired in 2024. She was not the owner of any firearms because acquiring and possessing firearms is not allowed with a minor's licence. According to McDonald, Jennifer Strang "had a valid firearms licence but did not have any restricted firearms that would require
registration". RCMP confirmed that in a previous police visit in the past two years, "firearms were seized under the
Criminal Code", but that "the lawful owner of those firearms petitioned for them to be returned, and they were". A relative told
The Globe and Mail that the seized guns had been returned "roughly a month" prior to the shooting. The
Wall Street Journal reported that Van Rootselaar's conversations with the chatbot "described scenarios involving gun violence over the course of several days", and that these messages were "flagged by an automated review system". At that time, about a dozen OpenAI employees debated turning the chatlogs over to the law enforcement. A spokeswoman for OpenAI confirmed that the company had banned Van Rootselaar's account but stated that it determined that her activity did not meet the criteria for reporting to law enforcement.
Drug use and mental health Van Rootselaar wrote on social media that she "regularly took
DMT" and tried to "burn [her] house down after using
psychedelic mushrooms". After using psilocybin mushrooms in October 2023, Van Rootselaar wrote: "I had a complete break from reality and did a lot of irrational things, I felt like I was dreaming. Many consequences ensued." Jesse Van Rootselaar had a history of poor mental health and police had responded several times previously for mental health-related calls, In 2023, Van Rootselaar "spent weeks receiving treatment in
Prince George". The police had last visited the home in spring 2025 regarding mental health issues, including self-harm. ==Investigation==