For what it's worth, evolutionary biologists aren't regularly shooting up schools and malls and movie theaters.
Animals also didn't invent guns and don't commit acts of mass murder against their own kind. Only human beings do that, and they have been doing it for a long time. You can find acts of mass violence of man against man, such as war, throughout history. You can even read about it in the Bible.
I'm putting this under the label of "disasters" because it's the same kind of religious doomsaying where the horrible example of the moment is said to have occurred as a result of disobedience to God--it's nice to know we'll still have this tradition around when the old ghouls like Pat Robertson shuffle off their mortal coil (not).