This buisiness of "locking down" schools and such for any imaginable reason is beyond retarded.
This kid pulled a "Gothic Fighting Knife" during a fight, and then ran away. Apparently he was busted for having a baseball bat on school property in March. I don't see how that warrents such a dramatic response.
I don't know about you, but I am seriously considering homeschooling my kids, lest they get "lockdown" at school over some poor 11 year old with a plastic butter knife.