It's probably not a false flag. It's probably another crazed loner who does identify himself with Al Qaeda. Europe doesn't have school shootings, we have these cases. They all claim some political cause, usually wildly different ones, but the real cause is usually schitzofrenia.
It's been happening quite a lot all over, that's disturbing.
But I agree, we should be very afraid of the ninjas.. They are radical buddhists Santorum's preacher warned us about after all!