[Thinlómien]

Foley, a few points.

First, Sméagol didn't attack or kill Déagol because he had some random pretty gold ring. He attcaked because he was overtaken by the lust and the lure of the ring. He maybe had some natural inclination to greed since he acted this quickly, but I daresay he didn't do this because he was a bad/evil person. Greed was his weak point and it proved fatal here. (Also, one must consider that it is possible that the Ring put more "luring power" to Sméagol than to Boromir, but I'm not sure why would it so so or can it control itself that much..)

Second, I wouldn't call his actions towards Bilbo murderous. He was hungry. He didn't want to kill Bilbo because he (Gollum) is an evil person, but because he was hungry. A lion doesn't kill an antilope because it's evil. It kills to satisfy its hunger. (And I'd rather not start arguing is it a worse crime to eat people than to eat animals, it's a horrible debate...)