The active-duty US Army Green Beret who authorities say exploded a Tesla Cybertruck outside the Trump International Hotel in Las Vegas this week struggled with injuries relating to his military service and said he was depressed while they were together a few years ago,

We're learning more about the 37-year-old Green Beret -- maybe nothing more perplexing than a gunshot wound to the head that police say occurred before explosives in the bed of the Cybertruck ignited on New Year's Day at about 8:40 a.