A lot has been said about the Major who shot up the folks at Ft.Hood, so I won't belabor the subject. But as a nurse, I always heard that psychiatrists were people who took up that specialty to try to better understand themselves. Every psychiatrist I ever met was kinda weird, so maybe there's a nugget of truth in that. NPR said he took up psychiatry instead of any other medical specialty because the sight of blood make him faint. Maybe he wasn't suited to be a doctor at all.
This man comes across as a lonely, dis-associated, socially inept fellow who has never found himself (in 70's jargon.) He has no wife which tells you something. He showed erratic troublesome behavior, and poor medical practices; didn't keep notes on his patient's records, made inflammatory statements about the war etc. The Army had lots of red flags with him--WHY didn't his peers or superiors in the chain of command DO something--like having the psychiatrist examined by a psychiatrist?