Desc: Shadows of Doubt: State vs. 81588 Vincent Simmons: Directed by Jonathan Stack. With Karen Sanders, Sharon Sanders, Vincent Simmons. Vincent Simmons is a life prisoner at Angola State Prison in Louisiana, where he was sentenced to 100 years in July 1977 after being convicted of the "attempted aggravated rapes" of 14-year-old twin sisters Karen and Sharon Sanders of Marksville.