British Columbia Sues OpenAI Over ChatGPT's Alleged Role in Tumbler Ridge School Shooting

The government of British Columbia, together with the Peace River South school district, sued OpenAI and CEO Sam Altman in US federal court in San Francisco on September 22, alleging the company failed to warn authorities before the Tumbler Ridge school shooting. The February 10 attack killed eight people: five students and an educational assistant at Tumbler Ridge Secondary School, and the shooter's mother and half-brother.

According to the complaint, OpenAI's safety team flagged the shooter's conversations about gun violence in June 2025 and recommended contacting police, but company leadership decided the activity did not meet its referral threshold. The account was banned, but the shooter later used a second, undetected account. The province is seeking compensation for emergency response and recovery costs, including school replacement and mental health support, and an injunction requiring OpenAI to overhaul its violence-detection and reporting protocols.

The province's case is one of several legal tracks. Lawyers for victims and survivors filed 30 additional lawsuits on September 2, bringing the known Tumbler Ridge total to 37, and the family of injured student Maya Gebala filed a separate suit in BC Supreme Court in March. Insurance Business framed the provincial action as "a test case for AI liability coverage", because it asks whether an internal safety flag creates an external duty to report, a question distinct from cases about harmful chatbot outputs.

For OpenAI, which is private, the exposure is legal and reputational rather than a direct market-price event, but the outcome could shape how AI providers and their insurers price the risk of acting, or not acting, on internal safety signals.