How do we create a situation, a world, in which this does not happen to anyone, not just to young people? In which Never again does not mean Never again to us, but Never again to anyone? Never again to us is the victim's trope, survival at any cost; Never again to anyone is asserting our internal freedom even in the bleakest of circumstances, our insistence on the big picture.
What motivated men to do this? This is worse than hate, worse than fear, worse than greed or jealousy or anything else I have ever felt. I don't know how you could justify killing anyone, so I cannot even imagine what inspires a nation to conceive of, fabricate, operationalize and use a killing factory.