An Army soldier who died in an explosion of a Tesla Cybertruck at the Trump hotel in Las Vegas left a note saying it was a stunt to serve as a "wake-up call" for the country's ills, investigators said Friday.
Matthew Livelsberger, 37, a Green Beret from Colorado Springs, Colorado, also wrote in the note that he needed to "cleanse my mind" of the lives lost of people he knew and "the burden of the lives I took."
Livelsberger apparently harbored no ill will toward President-elect Donald Trump, Las Vegas Metropolitan Police Department officials said.
"Although this incident is more public and more sensational than usual, it ultimately appears to be a tragic case of suicide involving a heavily decorated combat veteran who was struggling with PTSD and other issues," Spencer Evans, FBI special agent in charge, said at a news conference.
The explosion caused minor injuries to seven people but virtually no damage to the hotel. Authorities said Friday that Livelsberger acted alone.
'Not a terrorist attack'
"This was not a terrorist attack, it was a wake-up call. Americans only pay attention to spectacles and violence. What better way to get my point across than a stunt with fireworks and explosives," Livelsberger wrote in a letter found by authorities who released only excerpts of it.
Investigators identified the Tesla driver — who was burned beyond recognition — as Livelsberger by a tattoo and by comparing DNA from relatives. The cause of death was a self-inflicted gunshot to the head, according to coroner's officials.
Pentagon officials have declined to say whether Livelsberger may have been suffering from mental health issues but say they have turned over his medical records to police.
Authorities excerpted the messages from two letters Livelsberger wrote using a cellphone note application, said Assistant Sheriff Dori Koren of the Las Vegas police.
The letters covered a range of topics including political grievances, domestic issues and societal issues, Koren said.
Tesla engineers, meanwhile, helped extract data from the Cybertruck for investigators, including Livelsberger's path between charging stations from Colorado through New Mexico and Arizona and on to Las Vegas, Koren said.
"We still have a large volume of data to go through," Koren said. "There's thousands if not millions of videos and photos and documents and web history and all of those things that need to be analyzed."
The new details came as investigators sought to determine Livelsberger's motive, including whether he sought to make a political point with the Tesla and the hotel bearing the president-elect's name.
Tesla CEO Elon Musk has recently become a member of Trump's inner circle. Neither Trump nor Musk was in Las Vegas early Wednesday, the day of the explosion. Both had attended Trump's New Year's Eve party at his South Florida estate.
Musk spent an estimated $250 million during the presidential campaign to support Trump, who 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.
Truck absorbed blast
Investigators suspect Livelsberger may have been planning a more damaging attack, but the steel-sided vehicle absorbed much of the force from the crudely built explosive.
Investigators said previously that Livelsberger shot himself inside the Tesla Cybertruck packed with fireworks just before it exploded outside Trump International Hotel in Las Vegas on New Year's Day.
"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," the FBI’s Evans said Thursday.
A law enforcement official said investigators learned through interviews that he might have had a fight with his wife about relationship issues shortly before he rented the Tesla in Colorado on Saturday and bought the guns. The official spoke on the condition of anonymity because of a lack of authorization to discuss the investigation.
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 had recently returned from an overseas assignment in Germany and was on approved leave when he died, according to a U.S. official.
He was awarded five Bronze Stars, including one with a valor device for courage under fire, a combat infantry badge and an Army Commendation Medal with valor.
The explosion of the truck came hours after Shamsud-Din Bahar Jabbar, 42, rammed a truck into a crowd in New Orleans' famed French Quarter early on New Year's Day, killing at least 14 people before being shot to death by police.