IF the accounts are accurate, the soldier in question was suffering from normal combat fatigue, however, this soldier wasn't in a normal unit, he was with an SF unit. They are very hard nosed and need to be able to rely on each other in rough spots with no outside support, therefore standards of conduct are much higher than in a normal military unit. The individual in question needs to be out of where he is in the military, but you just can't transfer jobs. Patterns of behavior have to be established, psychiatric evals, med review boards have to be done, etc. If he gets an article 15 for dereliction of duty (Civilian equivalent of a misdemeanor charge) he will be reduced in rank, and the article 15 will establish the pattern of behavior needed to remove him from the unit. Not the way I'd want to get out, but as I said, you can't just say you want to transfer, esp when you're with a SF group.
BTW, in a military court, you are innocent until proven guilty, however, when brought in for court martial you will normally be found guilty of something. Courts martial are reserved for conduct and punishments above and beyond normal minor problems. The civilian equivalent would be a grand jury investigation.