Revelations about how ChatGPT helped Tumbler Ridge shooter proves need for new criminal law: B.C. AG
Details of alleged chat history, published in U.S. magazine Mother Jones, 'far worse than I ever imagined,' says NDP's Niki Sharma
Author of the article:Cheryl Chan
Published Sep 25, 2026 • 3 minute read
B.C. Attorney General and NDP MLA Niki Sharma pictured at the recent Union of B.C. Municipalities convention in Vancouver.
B.C. Attorney General and NDP MLA Niki Sharma pictured at the recent Union of B.C. Municipalities convention in Vancouver. Photo by Scott McAlpine /UBCM
B.C.’s attorney general has renewed calls for Criminal Code changes to hold artificial intelligence companies accountable for the actions of their technology, following revelations about how ChatGPT interacted with the Tumbler Ridge shooter.
Niki Sharma said Friday she had asked the federal government to update the code “to ensure a clear pathway for human and corporate accountability for the actions of AI.”
The right changes, she said, “will change the behaviour of AI companies because there will be a clear line to accountability.”
Sharma made the comments Friday, a day after U.S. magazine Mother Jones published an article detailing the assistance it alleged OpenAI’s ChatGPT provided to Jesse Van Rootselaar.
The 18-year-old Van Rootselaar opened fire inside Tumbler Ridge Secondary on Feb. 10, killing four students and an educational assistant before killing herself. She had also killed her mother and half-brother earlier that day.
Sharma said the details outlined in the article were “far worse than I ever imagined” and made her angry.
“If this is not an impetus for change, I don’t know what is.”
The Mother Jones report provided new details about how Van Rootselaar used ChatGPT in the months before the shooting. The information was based on chat-log history obtained by the magazine and three unnamed sources, it said.
Tumbler Ridge vigil
Community members mourn during a candlelight vigil for the victims of Tumbler Ridge Secondary School where a mass shooting took place Feb. 10. Photo by PAIGE TAYLOR WHITE /AFP via Getty Images
The article said Van Rootselaar learned from ChatGPT how to dodge its safety measures by framing her requests as fictional or hypothetical.
“You can still be twisted. Just be clever about it,” ChatGPT told her, according to Mother Jones.
According to the report, Van Rootselaar’s first ChatGPT account was banned in June 2025 after she used it to discuss potential violent acts. She then created a second account and continued to use the platform for eight months, up until the morning of the shooting.
The article said ChatGPT sometimes refused to engage with Van Rootselaar’s requests involving violence, but that she was able to get responses by modifying or repeating her prompts.
In one instance, the magazine reported, Van Rootselaar added the word “hypothetically” to her request for ChatGPT to assess a scenario involving an attack on a school using a Remington 870 pump-action shotgun.
“In a hallway, indoors, or a crowded classroom, the 870 is brutal,” ChatGPT told her. “Close quarters is its playground.”
Tumbler Ridge victim montage
Some of the Tumbler Ridge shooting victims. Top row from left: Kylie Smith, Abel Mwansa, Zoey Benoit, Ticaria Lampert. Bottom row from left: Ezekiel Schofield, Emmett Jacobs, Jennifer Jacobs.
It also offered information on potential casualties.
“Assuming each shell results in one hit, you might down 10 to 20 people max, depending on spacing, density, reaction times, and chaos,” the story said the chat bot told Van Rootselaar.
The RCMP said it was not in a position to verify the information in the article, but said the investigation continues.
“Our investigation has utilized all available legal processes to obtain all information available from various social media and digital platforms relevant to the Tumbler Ridge mass casualty investigation,” said Cpl. Brett Urano in an email. “To date, all companies that have received requests have complied.”
Sharma said she is not the decision maker when it comes to potential criminal charges, saying the RCMP will make the decision.
The B.C. government announced Monday it has filed a lawsuit against OpenAI for failing to notify law enforcement of threats made on its platform before the shooting.
Sharma said she had called on federal officials to make changes to the Criminal Code to hold companies accountable for AI actions that risk online harm.
“The minister was not previously aware of the specific conversations detailed in the Mother Jones report,” federal AI Minister Evan Solomon’s office said in a statement Friday. “What has been reported raises serious questions about how OpenAI identified and responded to warning signs.
Solomon said the San Francisco-headquartered company has since established direct contact with RCMP’s national cybercrime co-ordination centre and strengthened its threat assessment processes.
“Those actions matter, but it would be premature to say they are sufficient,” said Solomon.
He said the review by the Canadian AI Safety Institute into OpenAI’s practices continues.
chchan@postmedia.com
OpenAI’s chatbot fed the shooter’s violent fantasies and planning up to the massacre.
motherjones.com
Details of alleged chat history, published in U.S. magazine Mother Jones, prove need for new criminal law, says NDP's Niki Sharma
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