First of all, we can stop pretending that people who commit such horrible acts aren't deeply disturbed. A sane / rational person would never do something so heinous. Secondly, we need to implement stronger security measures. If we can take such steps to protect banks, courthouses, government buildings, museums, etc., we can certainly do as much *and more* to protect children. Thirdly, we need to stop vilifying and blaming firearms. They can be used to protect lives too and in the recent incident, it was an armed law enforcement officer who was able to neutralize the perpetrator, probably saving the lives of others who might have been shot. As previously mentioned, my city has Safety Agents in every school and we do not have such incidents. Lastly, we must encourage responsible citizens to protect themselves and their communities. This can be done with periodic training, certification and other proven methods. The problem isn't difficult to solve but unfortunately, there is no willingness to take corrective steps because the primary objective has always been to disarm the population and leave us weak and vulnerable. Anyone who does not recognize such a blatantly obvious agenda is incomprehensibly ignorant.