Casey Anthony s parents took polygraph test to clear their name, expert says wgmd.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wgmd.com Daily Mail and Mail on Sunday newspapers.
In a new TV special premiering Thursday, George and Cindy Anthony take the polygraph test in an effort to prove their innocence in their granddaughter Caylee Anthony's murder.