The suspected driver of the Tesla Cybertruck that exploded outside the Trump International Hotel in Las Vegas on New Year’s Day used popular chatbot ChatGPT to plan the blast, officials told reporters on Tuesday. Authorities last week identified the person found dead inside the Cybertruck as Matthew Livelsberger, 37, an active-duty Army soldier from Colorado Springs, and said he acted alone. The FBI says the incident appeared to be a case of suicide.