The person who rented the Tesla Cybertruck that was used in an explosion outside the entrance of the Trump hotel in Las Vegas has been identified as an active-duty member of the U.S. Army’s elite special forces unit, two U.S. defense officials said.

The truck was rented to Matthew Alan Livelsberger, two senior law enforcement officials told NBC News, but it was not immediately clear whether that was the identity of the person who was killed inside the vehicle when it erupted into flames early Wednesday outside the Trump International Hotel or who may have been responsible for the explosion.

An Army spokesperson said Livelsberger was on approved leave at the time of the incident and assigned to the U.S. Army Special Operations Command. He entered the active-duty Army in December 2012 after serving in the National Guard and Army Reserve.

Meanwhile, federal law enforcement agents began searching a residence in Colorado Springs, Colorado, connected with the case and were expected to be on-site for several hours, the agency said in a statement.