Killing off the weak so they can breed a nation of survivalists and fighters in

I suppose it is a cold comfort that those cowards usually off themselves or get bagged during their murder spree, but we'd all prefer they never do it in the first place.

Nah. That's too fast and easy given all the trauma they inflicted on victims and their families, especially the ones who didn't die. I want them alive, rotting in a hole, & getting gangbanged by pine-cones.

Not worth the effort or money. Take them around back and shoot them in the gut. Leave the body for the buzzards.