LAS VEGAS (AP) — 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.

Among other charred items found inside the truck were a second firearm, a number of fireworks, a passport, a military ID, credit cards, an iPhone and a smartwatch, McMahill said. Authorities said both guns were purchased legally.

The remains were burned beyond recognition and investigators have not definitively identified them as Livelsberger, but the IDs and tattoos on the body “give a strong indication that it’s him,” the sheriff said.

Livelsberger served in the Green Berets, highly trained special forces who work to counter terrorism abroad and train partners. He had served in the Army since 2006, rising through the ranks with a long career of overseas assignments, deploying twice to Afghanistan and serving in Ukraine, Tajikistan, Georgia and Congo, the Army said.

He was awarded a total of five Bronze Stars, including one with a valor device for courage under fire, a combat infantry badge and an Army Commendation Medal with valor. Livelsberger was on approved leave when he died, according to the statement.

McMahill said Livelsberger rented the Tesla electric vehicle in Denver on Saturday and the sheriff displayed a map showing that it was charged in the Colorado town of Monument near Colorado Springs on Monday. On New Year’s Eve, it was charged in Trinidad, Colorado, and three towns in New Mexico along the Interstate 40 corridor.

Then on Wednesday, the day of the explosion, it was charged in three Arizona towns before video showed it on the Las Vegas Strip about 7:30 a.m.

McMahill said investigators obtained charging station photos showing Livelsberger “was the individual that was driving this vehicle” and was alone.

“We’re not aware of any other subjects involved in this particular case,” the sheriff said.

Authorities searched a townhouse in Colorado Springs, Colorado, on Thursday as part of the investigation. Neighbors said the man who lived there had a wife and a baby and did not give any sign of posing a danger to anyone.

Cindy Helwig, who lives diagonally across a narrow street separating the homes, said she last saw the man she knew as Matthew about two weeks ago when he asked her if she had a tool he needed to fix the SUV he was working on.

“He was a normal guy,” said Helwig, who said she last saw his wife and baby earlier this week. Helwig noted that people in the townhome on a hill with views of the mountains don’t interact much except for when they’re getting the mail or walking their dogs.

Another neighbor, Keni Mac, who said she had only seen the man around the neighborhood, said he had tattoos and an “even keeled” demeanor. Mac said she saw the wife, who goes to her gym, walking their dog Wednesday morning.

The explosion of the truck, packed with firework mortars and camp fuel canisters, came hours after 42-year-old Shamsud-Din Bahar Jabbar rammed a truck into a crowd in New Orleans’ famed French Quarter early on New Year’s Day, killing at least 15 people before being shot to death by police. That crash was being investigated as a terrorist attack. The FBI said Thursday that they believe Jabbar acted alone, reversing its position from a day earlier that he likely worked with others.

Both Livelsberger and Jabbar spent time at the base formerly known as Fort Bragg, a massive Army base in North Carolina that is home to multiple Army special operations units. However, one of the officials who spoke to the AP said there is no overlap in their assignments at the base, now called Fort Liberty.

Chris Raia, FBI deputy assistant director, said Thursday that officials have found ‘no definitive link’ between the New Orleans attack and the truck explosion in Las Vegas.

Seven people nearby suffered minor injuries when the Tesla truck exploded. Video showed a tumble of charred fireworks mortars, canisters and other explosive devices crowded into the back of the pickup. The truck bed walls were still intact because the blast shot straight up rather than to the sides.

Tesla CEO Elon Musk said Wednesday afternoon on X that “we have now confirmed that the explosion was caused by very large fireworks and/or a bomb carried in the bed of the rented Cybertruck and is unrelated to the vehicle itself.”

Musk has recently become a member of Trump’s inner circle. Neither Trump nor Musk was in Las Vegas early Wednesday. Both had attended Trump’s New Year’s Eve party at his South Florida estate.

“It’s not lost on us that it’s in front of the Trump building, that it’s a Tesla vehicle, but we don’t have information at this point that definitively tells us or suggests it was because of this particular ideology,” said Spencer Evans, the FBI’s special agent in charge in Las Vegas.

Musk spent an estimated $250 million during the presidential campaign to support the former president. He was at Trump’s resort on election night and has been a frequent guest there. Trump has named Musk, the world’s richest man, to co-lead a new effort to find ways to cut the government’s size and spending.

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Copp, Richer and Long contributed from Washington. Contributing were Associated Press writers Rio Yamat and Ken Ritter in Las Vegas; Colleen Slevin in Colorado Springs, Colorado; and Christopher Weber in Los Angeles.