This documentary by Joe Berlinger and Bruce Sinofsky details the murder trial of Delbert Ward. Delbert was a member of a family of four elderly brothers, working as semi-literate farmers and living together in isolation from the rest of society until William's death.
If you liked this movie, you should also see: Blue Velvet (1986)Bowling for Columbine (2002)Klute (1971)L.A. Confidential (1997)Paranoid Park (2007)