Families of Canadian mass shooting victims sue OpenAI, CEO Altman in U.S. court

Community members attend a vigil to honor the victims of one of Canada's deadliest mass shootings in Tumbler Ridge, British Columbia, Canada, on February 13, 2026. Paige Taylor White | Afp | Family members of victims of one of Canada's deadliest mass shootings sued OpenAI and its CEO Sam Altman in U.S. court on Wednesday, alleging the company identified the shooter as a credible threat eight months before the attack but did not warn police. The lawsuits, filed in federal court in San Francisco, accuse OpenAI leaders of not alerting police because it would have exposed the volume of violence-related conversations on ChatGPT and potentially jeopardized the company's path to a nearly $1 trillion initial public offering. The February shooting in Tumbler Ridge, British Columbia left nine people dead, many of them children. An OpenAI spokesperson called the shooting "a tragedy" and said the company has a zero-tolerance policy for using its tools to assist in committing violence. "As we shared with Canadian officials, we have already strengthened our safeguards, including improving how ChatGPT responds to signs of distress, connecting people with local support and mental health resources, strengthening how we assess and escalate potential threats of violence, and improving detection of repeat policy violators," the spokesperson said in a statement. …