Demi Moore reveals the devastating childhood that shaped her l ABC News l Part 1, 3

Moore speaks exclusively to ABC News Diane Sawyer about her turbulent childhood, opening up about her parents addiction, and how she learned that the man she knew as her dad was not her biological father. READ MORE: SUBSCRIBE to ABC NEWS: Watch More on LIKE ABC News on FACEBOOK FOLLOW ABC News on TWITTER: GOOD MORNING AMERICA S HOMEPAGE: , ABCNews, DemiMoore, DianeSawyer, InsideOut, Interview, GMA