I wonder what his motive could have been. I read the entire article, but I still have no clue! I’m just too surprised that a member of the Religion of Peace would engage is such a violent act to imagine why it would have happened.
Motive might have been his father and brother refused to be Islamists, as bad as being infidels.
His father and brother probably were not devout, and were secular Muslms - son/brother couldn’t handle it - honor killings...