First of all, a convict exercising their right to appeal is not an indictment on them or their character, the same way pleading not guilty doesn't mean someone is a scumbag.
Remorse is a personal feeling. Regardless of how he feels inside, what is of material concern to society is that he pays (in prison time or money) for his crime, and that he sticks to staying out of trouble. I mean, on this issue, would anyone's opinion be different if he was remorseful after the fact?
No they don't, and no they are not
Jesus, you don't become Mandela because you have a wicked shot from outside the box