April 29, 2026 / 8:28 PM EDT / CBS News Add CBS News on Google Several families of victims of a mass shooting in Canada earlier this year are suing OpenAI and its CEO, Sam Altman, alleging the company's generative AI chatbot, ChatGPT, played a role in the February shooting and that the company should have taken steps to prevent it. "The Tumbler Ridge attack was an entirely foreseeable result of deliberate design choices OpenAI made with full knowledge of where those choices led," the seven suits filed in federal court in San Francisco on Wednesday claim. The lawsuits claim the shooter had extensive conversations spanning multiple days about scenarios involving gun violence. Few details about the chats have been made public so far.  Police said the shooter, identified as 18-year-old Jesse Van Rootselaar, killed five students and a teacher, as well as two family members at home, and died of a self-inflicted gunshot wound in the rampage on Feb. 11.…