No need to gun down a dozen or more people when all that Asshat had to do was resign his commission and be gone. This to me anyway sounds alot more then just some Muslim being harrassed for being a Muslim when he had an easy way out of the military. Thissounds more and more like he had a grudge against everyone he saw as an infidel for not following him on the true path to Islam.
Who can say if this isn't precisely why he joined in the first place? This is Islam being discussed.
Time was when you could have your clearance stripped if you married, for example, a Korean national because of the potential security risk. Yet this terrorist remained AD despite being investigated by the FBI! I fail to see any logic here at all.