What an idiot...he steals an unloaded gun and two cartridges, is later convinced to try to return it, at some point in the process he loaded the gun and in the act of returning the stolen property, shoots himself in the thigh and bleeds out.
Note...never leave a repairman or service personnel in your home un-watched...they will fall prey to greed, even if they typically are not thieves, the temptation is often too great. In this case, it cost the thief his life and gave the trusting homeowner a ton of official/legal/press hassle to deal with.
“at some point in the process he loaded the gun”
Not only that he also charged the weapon (put a cartridge into the chamber and cocked it). I don’t like that safty built into the trigger that Glock has.