Mark Kerrigan's PTSD?
I don't understand: if Mark Kerrigan wasn't in combat, then how did he develop PTSD? Serving overseas as a soldier in a non-combat deployment doesn't cause PTSD. Maybe he developed PTSD in prison, instead?
Update 20FEB10: I heard that Kerrigan's PTSD may be related to the famous 1985 tragedy where 248 members of the 101st Airborne died in a plane crash returning from duty in Egypt. Supposedly, Kerrigan was meant to be on the flight, but didn't take it for some reason, and the near-brush with death and the deaths of his comrades traumatized him. Certainly, surviving such an event can be traumatic, but does it qualify as PTSD?