Is there any hope of redemption ...?

[Hilde Bracegirdle]

Wormtongue: Having been corrupted by Saruman through his lust for power and for Eowyn....

Am I the only one who sees Grima's designs on Eowyn as an effort to make himself a legitimate ruler of Rohan after the war? I don't know much about Rohan, but it seemed if Eomer wasn't there she would be closest heir, though I can't see the Rohirrim accepting a woman. I'm just rambling though, and this is off the topic....

More to the topic at hand, I don't believe Gollum was "good" to begin with. It is hard to believe that merely seeing the ring could cause someone to kill their best friend in 5 minutes.

Boromir on the other hand was acting on what he thought was best. Remembering that at that point in the tale it was increasingly obvious that neither the ring nor Aragorn was returning with him to Minas Tirith.

To my mind Boromir was not in need of redemption and Gollum and Saruman didn't desire it. Grima might have been a candidate but blew it.