Sheriff: Stiles, I can't protect you if I don't know the truth. Did you really feel like you couldn't tell me?
Stiles: I couldn't tell anyone.
Sheriff: Did you think that I wouldn't believe it was self defense?
Stiles: What if it wasn't? What if I told you I wanted him dead?
Sheriff: I believe you. I also believe that wanting someone dead and murdering them are two very different things.