As Jawa Report notes, "it's a mystery. Probably one that will never be solved"...this is how absurd and PC the AP can be: 

Soldiers who witnessed the shooting rampage at Fort Hood that left 13 people dead reported that the gunman shouted "Allahu Akbar!" — an Arabic phrase for "God is great!" — before opening fire, the base commander said Friday.... The motive for the shooting wasn't clear, but Hasan was apparently set to deploy soon and had expressed some anger about the wars in Iraq and Afghanistan

He gave a Grand Rounds presentation. . . You take turns giving a lecture on, you know, the correct treatment of schizophrenia, the right drugs to prescribe for personality disorder, you know, that sort of thing. But instead of giving an academic paper, he gave a lecture on the Koran, and they said it didn’t seem to be just an informational lecture, but it seemed to be his own beliefs. That’s what a lot of people thought.

He talked about how if you’re a nonbeliever the Koran says you should have your head cut off, you should have oil poured down your throat, you should be set on fire......