In other words, he was just your normal abnormal murderer. Just a killer. No ideology, no rational and especially no religious motive. At the most Hasan’s act "may have been inspired by his incorrect interpretation of Islam".
But then he writes:
We Muslims allowed a mind-set (which may have influenced Major Hasan) by letting immoderate voices drown out more moderate ones.
Excuse me but he's contradicting himself. And worse, he's admitting the complicity, essentially, of Hakki and like-minded Muslims.
And why would he be liable for complicity is Hassan was simply your average lunatic?
Because of his shared religion?
Dear, dear, so there is a problem of religion mixing with terror.
And why were 'moderate voice' drowned out?
Where they terrorized?
Or did they view the immoderates and within the fold and not lunatics?