And although there is certainly usually circumstances causing people to do evil things, that doesn't remove personal responsiblity. I mean, does Saddam Hussein have any valid reason for murdering his own people? If you say he does then you must be insane.
Did Hitler have a valid reason to murder millions of Jews in sadistic ways? Of course not. I know that these examples are extreme but there are people out there who just enjoy killing. It's really scary.
I once read that there was a disturbed woman somewhere here in America that was on top of a building and wanting to kill herself by jumping off. The cops/rescue people blocked the road and backed up trafic. Unbelievablely there were people in their vehicles who actually started screaming to her "JUMP B**CH!" She jumped. Thankfully she wasn't killed but..
The only motivation here was pure selfishness. Because of there own inconvenience, these sick people started this and she could have killed herself. If that isn't evil, then please tell me what is.
I'm done for now.