My name is Castiel. No last name ......just Castiel. I am angel of the Lord , but I have sinned just as much as any demon in hell. Most of these sins I have lived with for many years, for I am very old. But out of every bad deed , every lie that ever rolled off my tounge , every drop of blood on my old hands I only regret one thing. A deed so sinister that Lucifer himself would cringe at the thought. So vile that it hurts more than I could possibly describe to even think about it. I am sure even my father has turned away from me. But I do not seek his forgiveness , It wouldn't matter anyway ........I could never forgive myself. My name is Castiel.  I am an angel of the Lord......and I killed Dean Winchester.