I personally think there is no evil people in the sense that no people has always been and will always be evil.
If someone does something "bad", even if it lasts for years, but then after that changes and becomes "good", is he still a bad person?
You are not a "personality" that your mind thinks you are. You are your actions, in this very moment. People change every seconds, so how can we label something as definite?
Anyway, it's very true that people do really bad things, and that's sad.