Why does the question of religion even have to enter into the discussion? This man shot and killed three people - period.
Likewise race. Why does our society have to have endless discussions on "Black man killed," "Hispanic man killed," "White man killed." The point is, someone killed someone and a human life was lost.
The dream of Martin Luther King has yet to be realized, especially by the news media, where an individual is judged, not for the color of his skin, (or the religion he practices), but the content of his character.
These kinds of events will continue until we have the courage to stop making them about race and religion and start dealing with the root cause of the problem, the lack of respect for human life and our fellow human beings, regardless of race, creed or color.