We need to remove the idiot "gun free zone" and start training & arming teachers and selected key personnel along with higher security (doors, video cameras, access by others only with approved ID, etc.
Several schools have already adopted these precautions, including a number in Texas. You will never identify and prevent psychos (adults and children) from shooting others for recreation. But, you can decrease the probability that a bad guy/girl can access certain places; and, if found, bring down the tough arm of the Law and put them in a cage (or something more permanent). When I was in public school in the 40s and 50s, there was NEVER an act of violence! Kids respected others and if not, just got into a minor fight... and, Principals and Parents never "spared the rod"...
