Originally Posted by Shaggy Hiker
Revenge isn't exactly a pure motive, and this is not particularly impartial since skin color affects the result, but consider your point #2:
If somebody has been murdered, they are dead. No real satisfaction for them one way or another (as might be the case in a robbery). So you mention the victim's camp. In other words, their beneficiearies, friends, whatever. That's an interesting idea. If the killer doesn't want to die (some do, of course), then put them to work. They won't make much, and you can't expect much, but they will make something. Split this. You can't take it all, or the incentive to work would be zero, which would be slavery, which is inefficient among other things. While this would be modest, it would be greater than 0....except that the person would still be alive.
If the situation was life without possibility of parole, plus gainful work, everybody is better off than the person being put to death, and nobody is worse off.