I'm not remotely defending Pistorius but I assume he knew as soon as he did it that he would get caught and I definitely believe that it is possible to feel remorse for something terrible. I have no idea if that applies to Pistorius or not but a family member of mine served jail time for murder and although he totally deserved the punishment, he's still really sorry for what happened. That's the real jail sentence -- having to live with the memory of what you've done forever.