This is just pathetic.
If you are in jail, someone MAY press the button and kill you. It does not matter if that is your friend or not. There is no rule against it.
Secondly, if you are camping, you must Slap/Slay the player and not change their nick. After slapping or slaying the player, you inform them of what they are doing wrong in order to correct them and prevent it from happening in the future.
Changing their nick is not a sign of showing off your power sniper, as the logs show, but a more unorthodox way of getting your message across, and I do not want that to be implemented again.
I think this is ok to solve now.