Families of Canadian mass shooting victims sue OpenAI, CEO Altman in US court
Corroborated by 5 sources from 5 publishers
TL;DR
Reports differ across sources; according to theguardian.com, families of seven victims of a mass shooting at a secondary school in British Columbia are suing OpenAI and the company’s CEO for negligence after it failed to alert authorities to the shooter’s troubling conversations with ChatGPT.
Sources
1
The Guardian (World)
https://www.theguardian.com/technology/2026/apr/29/openai-tumbler-ridge-shooter-chatgpt-lawsuit
2
Investing.com News
https://www.investing.com/news/stock-market-news/families-of-canadian-mass-shooting-victims-sue-openai-ceo-altman-in-us-court-4645467
3
CNBC 100003114
https://www.cnbc.com/2026/04/29/families-of-canadian-mass-shooting-victims-sue-openai-ceo-altman.html
4
ABC News Money Headlines
https://abcnews.com/Business/wireStory/families-canada-school-shooting-victims-sue-openai-shooters-132497743
5
Al Jazeera
https://www.aljazeera.com/economy/2026/4/29/families-sue-openai-alleging-chatbot-aided-in-canadian-school-shooting?traffic_source=rss