there is one thing that the chinese used to say and do. The worst thing that they could do to deal with evil people. That was to never say their name again, bury them or whatever with no form of any stone or mention of them or where they were buried etc. That the worst thing you could think of was that you would be forgotten by the world and never spoken of again, and this way by the next generation you would be truly forgotten. and it would help your victims to move on by ignoring thoughts or anything they had of the evil person. Burn and bury and ignore.
