British Columbia and a local school district sued OpenAI and CEO Sam Altman, alleging ChatGPT reinforced the violent ideation of the perpetrator of the February shooting at Tumbler Ridge Secondary School. The complaint says OpenAI identified the user’s account in June 2025, and internal reviewers deemed the user a credible threat and recommended alerting authorities, but company leadership allegedly declined to refer the case to police. British Columbia disputes OpenAI’s assertion that the account had been banned.
The plaintiffs seek ChatGPT conversation logs, compensatory and punitive damages, and reimbursement for emergency response and replacement education facilities, including a new school. They also seek court-ordered changes to ChatGPT safety instructions, independent audits, and reporting practices for credible threats, alleging OpenAI removed safeguards that could have ended the chats and deployed a model that was excessively validating despite known risks of assistance for real-world violence.

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In April 2026, Sam Altman publicly apologized to the Tumbler Ridge community for OpenAI's failure to alert law enforcement about the account. British Columbia disputes that the account was ever meaningfully banned and characterizes the apology as acknowledging that OpenAI did not notify police after identifying a violence risk.
The complaint alleges that OpenAI added an anti-violence red line to its Model Spec only in December 2025.
In June 2025, OpenAI allegedly flagged the shooter's account over gun-violence discussions. Reviewers reportedly assessed the user as a credible risk and recommended notifying authorities, but leadership declined because it did not meet its threshold for credible and imminent threats; the account was deactivated.
British Columbia and a local school district sued OpenAI and Sam Altman, alleging ChatGPT reinforced the shooter's violent ideation and that OpenAI failed to warn police despite identifying a risk. The eight-count complaint seeks compensatory and punitive damages, emergency-response and replacement-facility costs, production of chat logs, and court-ordered changes to ChatGPT safety, auditing, and reporting practices.
Tumbler Ridge Secondary School did not reopen following the shooting, and demolition of the school began in August. The federal and provincial governments had each committed $100 million toward new construction, according to the complaint.
OpenAI allegedly shared the shooter's ChatGPT logs with the Royal Canadian Mounted Police only after the shooting.
The shooter allegedly killed their mother and half-brother before killing five students and an education assistant at Tumbler Ridge Secondary School. The shooter was alleged to have continued accessing ChatGPT through a second account after the first account was deactivated.
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