Being a killer is not easy, especially if you want to quit, ask John Rain, he tried.
Who is John Rain?
John Rain is a fictional character created by Barry Eisler. Ex-Special Forces and ex-CIA, he is now a freelance assassin for hire who specializes in making his victims appear to have died of natural causes.
Rain is offering his assassination services to any client willing to follow his three rules: 1) No women or children, 2) No secondary team working separately on an assassination Rain is handling, 3) Principal actors only (i.e., no hits on family members, etc., in order to “send a message”).