As I said, you are making things up. It also doesn’t matter to his potential victims that he might have had “self-esteem” problems, “depression”, or thought he was the Paraclete of Caborca and the Angel of the Bottomless Pit.
If your husband or son had been killed by Taliban as a result of this guy sleeping on guard duty I am quite sure you would want him hung by the testicles until dead (after a court martial, of course).
Those are genetically controlled conditions ~ talk therapy doesn't work. In a combat situation chronic sleepiness is a special condition ~ it's not like these guys are up partying all night you know.
Modern standards are to treat the nut cases, not shoot them.
And you? Why do I have this image of you kissing their butts and thanking them for identifying the bad guy for you to rage about in private.