In the first place, and despite your opinionated blathering, you have no more idea of what kind of guy the victim was than I do. But I would suggest that 7 years honorable military service is a good indication that someone is not a "hot-headed bad boy type who mouthed off to anyone who came across as an authority figure." Those types generally aren't successful in the military. Their careers tend to be short and less than honorable. But based on Reeves and his background, I would suspect that they would find a home in the Tampa Police Department.
Your man was the instigator of the incident. He overreacted and shot a man to death for no valid reason. He deserves everything the courts can throw at him. And if it makes his victim's widow feel better to go on "Good Morning America" and tell the world what she thinks of the colossal prick who murdered her husband then more power to her. Reeves gave her that right.
“Your man?” How is the shooter MY MAN? Well thank you Mister Judge and Jury. I guess you also think there’s no “statistical probability” an officer of the U.S. military of Muslim faith and Arabic ethnicity would execute dozens of his unarmed U.S. military colleagues in a jihadist action on a U.S. military base, do you????? I could tell you what I really think of your thought processes. But it would probably get me flagged.