Matthew Livelsberger, a 37-year-old Army Green Beret, used generative AI, including ChatGPT, to plan an explosion of a Tesla Cybertruck outside the Trump International Hotel in Las Vegas. He fatally shot himself just before the truck detonated on January 1. Livelsberger left notes indicating the attack was intended as a "wake-up call" for the nation. Investigators are exploring potential links to terrorism and examining connections to another attack in New Orleans.