. . . Or maybe he just flipped out. These gunmen are almost always on psych drugs. They might blame anyone for their actions, even the tooth fairy, but they're not in their right minds. Shootings like this were very rare before the era of psychopharmacology.

What on earth has this got to do with evolution? Is it now going to be blamed for all the evils of the world? It's a scientific model of how life works. The only morals attached to it are the ones superimposed by people who want to twist it to support their own ideologies.