Authorities identified the man as Master Sgt. Matthew Alan Livelsberger, who enlisted as a U.S. Army Special Operations soldier. He served in the active duty Army from January 2006 to March 2011. He then joined the National Guard from March 2011 to July 2012, followed by the Army Reserve from July 2012 to December 2012. Livelsberger entered the active duty Army in December 2012 and was a U.S. Army Special Operations Soldier.

U.S. Army Special Operations Command confirmed that Livelsberger was on approved leave at the time of his death.

On Wednesday Las Vegas police said that crews pulled gasoline canisters, camp fuel canisters and large firework mortars from the back of the Cybertruck. The explosion, which was caught on video, also injured seven people.