Americans were shocked last week when a Tesla Cybertruck exploded outside of the Trump International Hotel in Las Vegas on New Year's Day.

New details about the bombshell event emerged on Friday, including that the perpetrator suffered from mental health problems. 

Soldier denied that he was committing a terrorist attack

According to the Daily Caller, authorities revealed that Army Master Sgt. Matthew Alan Livelsberger was known to struggle with post traumatic stress disorder (PTSD).

Livelsberger, who committed suicide, left behind a series of charred note in which he said his actions were intended to serve as a  "wake-up call" for America.

"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," Livelsberger was quoted as writing.

"This was not a terrorist attack," he continued. "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?"

Suicide note warned that America is "headed toward collapse"

Livelsberger further complained that the country is "headed toward collapse" and is "being led by weak and feckless leadership who only serve to enrich themselves."

Spencer Evans serves as special agent in charge for the FBI’s Las Vegas field office, and he told reporters that the explosions stemmed from personal problems which Livelsberger was unable to cope with.

He said it "ultimately appears to be a tragic case of suicide involving a heavily decorated combat veteran who is struggling with PTSD and other issues."

However, Fox News observed on Saturday how the Army has since denied that Livelsberger exhibited any "concerning behavior" prior to taking his own life.

Army says it has provided the FBI with "all relevant records"

That claim was made by Brig. Gen. Amanda Azubuike, who is the Army's chief of public affairs. She told the network, "All relevant records were provided to the FBI as the lead investigative agency."

"Master Sgt. Matthew Livelsberger had access to and used the POTFF [Preservation of the Force and Family] program; he did not display any concerning behaviors at the time, and was granted personal leave," Azubuike added.

Nevertheless, Fox News pointed out how Las Vegas Metropolitan Police Department Sheriff Kevin McMahill insists that PTSD was a factor in Livelsberger's death.

"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 is struggling with PTSD and other issues," McMahill told reporters.