LAS VEGAS — The highly decorated U.S. Army soldier inside the Tesla Cybertruck that burst into flames outside President-elect Donald Trump’s Las Vegas hotel shot himself in the head before the explosion and likely planned to cause more damage but the steel-sided vehicle absorbed much of the force from the rudimentary explosive, officials said Thursday.

Clark County Sheriff Kevin McMahill said at a news conference that a handgun was found at the feet of the man in the driver’s seat, who officials believe is Matthew Livelsberger, 37, of Colorado. The shot appeared to be self-inflicted, officials said.

Damage from the blast was mostly limited to the interior of the truck. The explosion “vented out and up” and didn’t hit the Trump hotel doors just a few feet away, the sheriff said.

“The level of sophistication is not what we would expect from an individual with this type of military experience,” said Kenny Cooper, a special agent in charge for the the Bureau of Alcohol, Tobacco, Firearms and Explosives.

— The Associated Press