Coverage of the topic is misleading and fuels paranoia and fear while stoking copycats, and the media not only becomes part of but also magnifies the problem.
People who kill kids in this way at school are deranged and on some level want attention. Step one: don’t add fuel to the fire - no more 24 hour CNN Columbine coverage. Step two, reduce teacher-student ratios - use lotto money actually for what it is for. Step three, end the middle school experiment - go back to K-8 and allow school of choice. Step four, allow teachers to refer kids for counseling, to share concerns with parents,and request a danger to self or others evaluation. Step five stricter gun background checks. Step six, tax ammo in excess of a certain purchase amount per year unless the individual demonstrates that they hunt to feed their family or use for other sanctioned reasons.
Or, just ban all guns, but oh wait, that pesky Constitution.