The Colorado soldier who died by suicide as he blew up a Cybertruck outside President-elect Donald Trump’s Las Vegas hotel wrote a “manifesto” calling on Americans to “wake up” and likely had PTSD, local and federal law enforcement said Friday. Las Vegas police and federal officials released new details about Army Green Beret Matthew Livelsberger of Colorado Springs, confirming that he acted alone and wasn’t tied to any terrorist groups and doubling down that he was not connected to a Wednesday terrorist attack in New Orleans that killed 14 people in addition to the attacker. They also said it did not appear he harbored any animosity toward Trump. “Although this incident is more public and sensational than usual, it ultimately appears to be a tragic case of suicide involving a heavily decorated combat veteran who is struggling with PTSD and other issues,” said Spencer Evans, special agent in charge of the FBI’s Las Vegas field division. Las Vegas Metropolitan Police Department Assistant Sheriff Dori Koren speaks during a press conference regarding developments of an investigation into a New Year’s Eve truck explosion outside of Trump International Hotel, on Friday, Jan. 3, 2025, in Las Vegas. (AP Photo/Ty ONeil) Pentagon officials declined to say whether Livelsberger, a 37-year-old master sergeant, may have been suffering from mental health issues but told the Associated Press on Friday they have turned over his medical records to police. Livelsberger also had ongoing family problems that contributed to his actions, FBI and Las Vegas police said Friday. A law enforcement official told the Associated Press that investigators learned through interviews that Livelsberger may have gotten into a fight with his wife about relationship issues shortly before he rented the Tesla on Saturday and bought the guns. The official spoke on the condition of anonymity because they were not authorized to discuss the ongoing investigation. Las Vegas Sheriff Kevin McMahill referred to widespread speculation about Livelsberger’s identification and a document shared by “The Shawn Ryan Show Podcast” and attributed to Livelsberger. Investigators are confident the document shared on the podcast was penned by Livelsberger but have not fully verified it, Evans said. The FBI received a copy as a tip after the explosion Wednesday and believe it was sent by Livelsberger. In the document, Livelsberger writes about drones from China being used on the East Coast, war crimes being covered up in Afghanistan, that he was being followed by federal law enforcement and already had a massive car bomb. Investigators identified Livelsberger through credit cards, a military ID and passport that survived the blast as well as his tattoos, dental records provided by the Department of Defense and a DNA sample provided by a family member, McMahill said. Las Vegas police also shared two letters obtained from one of Livelsberger’s phones which call on Americans and military servicemembers to wake up and see they are being led by “weak and feckless leadership.” Investigators are still trying to access information on a second phone and a laptop. “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 the letters recovered by police and released Friday. “Why did I personally do it now? I needed to cleanse my mind of the brothers I’ve lost and relieve myself of the burden of the lives I took,” the letter continues. In one of the letters, Livelsberger appears to call for an insurrection and for soldiers and veterans to go to Washington, D.C., for a “purge,” starting with peaceful means but fighting and using “any means necessary” to remove Democrats from the federal government and military. The second letter expands on Livelsberger’s concerns about American culture, values and wars, praising Trump as “a real President” and telling people to rally around the President-elect, Tesla CEO Elon Musk and Robert F. Kennedy Jr. Musk recently became a member of Trump’s inner circle after spending an estimated $250 million during the presidential campaign to support Trump. 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 and also nominated Kennedy, a prominent vaccine skeptic, to lead the Health and Human Services Department. Police also recovered a “surveillance log” from Livelsberger’s phone that he used as a journal for 10 days before the explosion. Those entries matched his movements seen through surveillance videos, phone and financial data, including legally purchasing two guns in Colorado on Dec. 27 and picking them up on Dec. 30. “We still have a large volume of data to go through,” said Las Vegas Assistant Sheriff Dori Koren. “There are thousands if not millions of videos, photos, documents and web history that need to be analyzed.” This undated photo, provided by the Las Vegas Police Department shows the Tesla Cybertruck involved in an explosion outside the Trump Hotel in Las Vegas. (Las Vegas Police Department via AP) Tesla engineers extracted data from the Cybertruck that shows it was never fully in self-drive mode, Koren said. Investigators do not know how Livelsberger was able to simultaneously detonate the bombs and kill himself or why he selected Trump’s hotel or a Cybertruck for the explosion. Some of the data on his phone shows he was considering other locations, including the Grand Canyon, McMahill 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 had recently returned from an overseas assignment in Germany and was on approved leave when he died, according to a U.S. official. Neighbors in Colorado Springs confirmed Thursday his wife had recently had a baby. 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He opened up to Arritt, 39, whom he met and began dating in Colorado in 2018, about exhaustion, pain that kept him up at night, and reliving violence from his deployment in Afghanistan, Arritt said. “My life has been a personal hell for the last year,” he told Arritt in text messages during their early days of dating that she shared with The Associated Press. 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 14 people before being shot to death by police. The FBI says they believe Jabbar acted alone and that it is being investigated as a terrorist attack. The FBI has not found any evidence the two events are connected, Evans said Friday. The two never communicated by phone or email and never served in the military in the same location. “The only things we have connecting them are incidental and what we believe to be are coincidental similarities,” he said. The Associated Press contributed to this report. Sign up to get crime news sent straight to your inbox each day.