Just over twenty years ago, school changed forever – April 20th, 1999 to be exact. Prior to that date, school shootings simply did not happen – or at least not with the frequency they do now. I am old enough to remember life before Columbine. In fact, the spring of 1999 marked the last semester of my senior year of high school. In that pre-Columbine world, we did not have active shooter or lockdown drills. School doors were not always locked. In fact, even during my early high school years at the rural Michigan high school I attended, boys and girls who loved to hunt and had their own vehicles could lock their rifles in their trucks during deer season. It is not an exaggeration to say that I grew up and attended school in a different world.

This became frighteningly clear to me when I began substitute teaching several…