So sorry for your personal experience.FKA Reader, thanks for the civility! I have lost people close to me by the gun.. It actually was an "off duty" highly trained policeman..who was drunk..The solutions are not easy to find....but I believe they are out there. Your response is the direction that will create meaningful dialogue.. not just attacks on people who may not be "enlightened". It seems that on this blog, people would rather attack versus inform others or give others meaningful insights. Actually, I worked in a highschool where we had only one entrance during the school day. The front door had to be unlocked once the visitor was identified. We had an office with a close circuit tv...manned by a staff member. It cut down tremendously on "outside" people.
Just an "idea".
It appears that the school in Connecticut had a secured entrance similar to what you describe and the gunman was able to shoot his way through it. Likewise, Columbine had armed security people who engaged with the gunman. And up in Cleveland a few years back, I believe that a student gunman was able to get his weapon through a metal detector.
There was some follow-up to the Cleveland shooting that pointed in the direction of making better use of mental health resources and reordering some processes to provide better linkages between students with a variety of symptoms and the mental health system. Apparently one of the findings is that Cleveland had the kind of attendance driven revolving door of disenrolling/re-enrolling students that meant that they were frequently starting over in new schools and records were often waylaid. They also still used a system of "discipline transfers" (sort of a geographic cure for repeat offenders) that compounded the problem.
Long-term I don't see much value in the proliferation of weapons. The more there are in circulation, the more likely they are to end up in the hands of angry alcoholics, children, and kids on the street emulating their elders.