New details in the New Year's Day Cybertruck explosion outside the Trump Hotel in Las Vegas. Investigators say the man behind the explosion used artificial intelligence to plan it... relying on a San Francisco-based company's tool.

Police have "clear evidence" that Matthew Livelsberger used the generative artificial intelligence tool to "help plan his attack," police said Tuesday.

New details in the investigation come almost a week after Green Beret Matthew Livelsberger fatally shot himself just before the Cybertruck exploded on New Year’s Day.