Me too. I think the act of revenge from John was justifiable. But the idea of rehabilitation is interesting. I guess that would depend on the person exacting the revenge. I've heard of cases where family members forgave a killer for taking the life of a loved one. Not everyone can do this. Perhaps I could forgive a killer if he took the life of someone very close to me, but I might need time to meditate on it. If I were there at the immediate time he killed my relative, I absolutely would respond instinctively with deadly intentions.

The whole karmic thing is a good point to bring up. Remember the ending to 'The Purge: Anarchy'? Yeah.