Over 3 decades ago I worked at a Christian school. School shootings were ramping up, and this school decided to dramatically increase security (for that time). All entry doors locked, cameras, visual/voice communications before allowed entry, administrators with CC licenses had weapons (parents approved), "sketchy" students were monitored, etc. Fortunately, only one suspicious student was ever removed due to making a threat. They eventually - gladly/sadly - installed metal detectors.

Reading this story today brought chills to my body and tears to my eyes. Be it gun, knife, whatever - we must protect our children. My heart breaks for those who died and their families.