i don't have to kill him, he is my npc. if the players kill him it'll mean they head down a bad tangent of the scenario that i haven't started to flesh out yet, but i will cos lets face it. the people i play with are jerks
well what i'm doing atm is setting up a campaign that i will be running. thus i will be the GM. any character involved who is not controlled by a player is a non player character and thus controlled and invented by me. thus i am making non player characters to help or hinder the players.