Authorities have tentatively identified the man killed inside a Tesla Cybertruck outside the Trump hotel in Las Vegas as 37-year-old Matthew Livelsberger. Here's what we know.

Three U.S. officials said the man was an active-duty Army member who spent time at the base formerly known as Fort Bragg in North Carolina.

The truck packed with fireworks mortars and camp fuel canisters was parked outside President-elect Donald Trump’s Las Vegas hotel.

The man who rented a Tesla Cybertruck that exploded outside the Trump International Hotel in Las Vegas was 37-year-old Matthew Alan Livelsberger, a U.S. Army servicemember from Colorado, U.S. officials said.

The person inside the Tesla Cybertruck that burst into flames outside President-elect Donald Trump's Las Vegas hotel suffered a gunshot to the head before the explosion.

We're learning more about the 37-year-old Green Beret -- maybe nothing more perplexing than a gunshot wound to the head that police say occurred before explosives in the bed of the Cybertruck ignited on New Year's Day at about 8:40 a.

Matthew Livelsberger, a highly decorated Special Forces soldier, is believed to have rented the Tesla truck, driving it to the entrance of the hotel and touching off an explosion. Livelsberger died of apparent self-inflicted gunshot wounds,

The highly decorated Special Forces soldier who died by suicide in a Cybertruck explosion on New Year’s Day confided to a former girlfriend who had served as an Army nurse that he faced significant pain and exhaustion that she says were key symptoms of traumatic brain injury.