A man named Matthew Livelsberger caused an explosion involving a Cybertruck at the Trump International Hotel in Las Vegas, using ChatGPT to research explosives and firearms beforehand. Livelsberger, who reportedly suffered from PTSD, took his own life before the explosion detonated, injuring seven others. Investigators found a manifesto and noted no connections to terror groups. Authorities continue to analyze additional devices for more information about his actions and motives.