His father and brother probably were not devout, and were secular Muslms - son/brother couldn’t handle it - honor killings...
Don’t be silly. The Religion of Peace is not violent, as the media have reassured us after every single one of the 30,477 Islamic terrorist attacks since 9-11-2001, all isolated incidents. Saying Islam was the motive is just as absurd as saying Hillary lost because she was a bad candidate. Both are crazy talk; just ask the NYTimes, the WaPost, or any other mainstream news source.