OpenAI flagged suspect’s ChatGPT account months before Canadian mass shooting
OpenAI identified and banned a ChatGPT account linked to the Tumbler Ridge shooting suspect in June 2025 under abuse-detection enforcement, but did not alert authorities unless imminent risk; after the February attack, the company proactively shared information with Canadian police. Eight people were killed and 27 wounded; the suspect died by self-inflicted gunshot. The motive remains unknown, and reports say WSJ staff debated whether to take action on the posts before the attack.