For reference of people far away (I live 30 miles from this incident), this is an area of the U.S. with a great number of people of Middle Eastern origin.

I realize nobody said it was, but in case you were thinking it: This is not Paris. This is not a place where one might imagine "brown" "Muslim" "immigrants" are cowering and "raging" minorities. Middle Eastern peoples are pretty much the "normal" fabric of the demographics as, say, Italians. The Mediterranean Mid-East cultures (Lebanese, Syrian) mix quite elegantly with the Mexican culture and other American creoles here in the semi-desert setting. Most people with a name like Farook would sooner be found listening to doo wop and going to the drive-in movies than organizing militant nonsense.