Overturned convictions in the United States  This is a list of notable overturned convictions in the United States. Blount County   Jackson County   Jefferson County   Maricopa County   Marion County   Alameda County   Los Angeles County   Miami-Dade County   DeSoto County   Gulf County   Leon County   Chatham County   Cobb County   DeKalb County   Floyd County   Fulton County   Cook County   Lawrence County   DeKalb County   Floyd County   St. Joseph County   Orleans Parish   Baltimore County   Norfolk County   Suffolk County   Macomb County   Boone County   St. Louis County   Lincoln County   Essex County   Mercer County   Passaic County   New York County   Westchester County   Forsyth County   Cuyahoga County   Cleveland County   Oklahoma County   Pontotoc County   Tulsa County   Clackamas County   Dauphin County  Jay C. Smith was convicted of the 1979 murder of a schoolteacher and her two children and sentenced to death. Smith's conviction was overturned in 1992. Delaware County  Nicholas Yarris was sentenced to death for a 1981 rape and murder. DNA tests exonerated him in 2004. See "The Fear of 13"  Philadelphia County  Fred Thomas was convicted of the 1993 murder of a Federal Express truck driver and sentenced to death. The conviction was overturned in 2002. Chester County  Two black brothers Thomas Griffin and Meeks Griffin were convicted of the 1913 murder of John Q. Lewis, a Confederate veteran, and executed in the electric chair. They were pardoned in 2009. Clarendon County  Fourteen-year-old black George Stinney was convicted of the 1944 murder of two white girls and executed in the electric chair within three months of his conviction. He was exonerated in 2014. Burleson County  Anthony Charles Graves was convicted of the August 18, 1992 mass murder of six people in Somerville, after being implicated in the crime by Robert Carter - the father of one of the victims. Carter was executed in May 2000 for his part in the crime - and in his final statement took sole responsibility for the crime: "To the Davis family, I am sorry for all of the pain that I caused your family. It was me and me alone. Anthony Graves had nothing to do with it.