Well, that was my point excactly, no guns and yet kids are still killing each other. Forget the apolgy in blood part, but how can
"The incident comes on the heels of an attack in which an 11-year-old girl killed a classmate by slashing her throat with a box cutter, also in southern Japan."
no fit in the "school violence" category. Take away guns, criminals are still criminals, they just use other tools.
But wait, I tought if you take away the guns, people magically became civil, loved each other, and no one died from un-natural causes any more.