Police reported that U.S. Army Master Sgt. Matthew Livelsberger used ChatGPT to plan a New Year's Day explosion involving a rented Tesla Cybertruck outside the Trump International Hotel. Livelsberger, who had no prior criminal history, fatally shot himself before the explosion, which injured seven bystanders. His six-page manifesto indicated possible mental health issues and grievances. Authorities found over 60 pounds of explosive material, raising concerns about the potential danger of the incident.