If Putin already has decided to end the world in a nuclear war, then there's not much that we can do about it. But if Putin would be seen as a brutal murderer

If Putin already has decided to end the world in a nuclear war, then there's not much that we can do about it. But if Putin would be seen as a brutal murderer by many russians, then chance are that there are some who could try to assassinate him, like there were many assassination attempts to Hitler.