The highly decorated Special Forces soldier who died by suicide in a Cybertruck explosion on New Years Day confided to a former girlfriend who had served as an Army nurse that he faced significant pain and exhaustion that she says were key symptoms of traumatic brain injury.

Matthew Livelsberger, 37, a Green Beret from Colorado Springs, Colorado, apparently had no ill will toward Donald Trump, officials said.

An Army Green Beret, Matthew Livelsberger, died by suicide before a Tesla Cybertruck packed with fireworks exploded outside Trump International Hotel in Las Vegas on Jan. 1.

Retired mixed marshal arts star Tim Kennedy said he was “flabbergasted” when he learned that Matthew Livelsberger is believed to be behind the Jan. 1 blast that injured 7.

Investigators say they believe the bombing of a Tesla Cybertruck at the Trump International Hotel in Las Vegas this week was "a tragic case of suicide."

Tricia Kean outlines what we're learning about Matthew Livelsberger from his ex-girlfriend, Alicia Arritt. Investigators say Livelsberger died by suicide in the explosion outside the Trump International Hotel last week.

The driver, who died before the blast, urged his fellow servicemembers to force Democrats out of government “by any means necessary.”