Player killing should be in the game, because it's fun of the game. But when a player hunting another player there should be crime mark in his head and which is visible for all. During crime mark if he is getting killed by other player, then the other player should be reward with a peace mark. Also the crime marked player should lose some experience, gold and token. If a player being attacked first by a guy and then he kills him, then he will get peace mark.
I think you guys will think about it. Player killing is fun but there should be some restriction. TY