We reacted right away when Columbine happened, spinning every stray hair of a rumor into a tapestry of explanation. A crisis like that draws us in, makes us nearer to the now. It rattles us where we are usually numb. It reorients our world for a time. We stare down humanity, searching every eye to find either a brother or a monster. People are a mix of those things, but we want an either/or. A definitive separator feels good, draws a clear line between monsters and humans.