It does not say the owner had a gun, it said they struggled.
I suspect the perp shot “hisself” in the “lower abdomen” which is reporter jargon for a shot to the nuts and lower unit. He was trying to extricate his heater from his pants when it went of and made him a new man. If he had survived at least he would have still been able to be in Obama’s army sans pecker and stuff.
Whatever it made him, it wasn't a man.