According to the FBI, there have been over 160 school shootings since 2000. All kinds of guns were used in these, some of the perpetrators were apprehended and some killed themselves. All attacks were completed in the first 5 minutes, before the police or other authorities could respond. The bottom line was that the school was on its own during the shooting crisis until they were ready to pick up bodies and treat the wounded.
Starting with Columbine and now the growing collection of school shootings there has been no real effort put in place to protect our kids, only talk and the usual gun control screams. This has been at the continued expense of our children and their safety.