answer:From The Death Penalty Information Center “There is no way to tell how many of the over 1,000 people executed since 1976 may also have been innocent. Courts do not generally entertain claims of innocence when the defendant is dead. Defense attorneys move on to other cases where clients’ lives can still be saved. Some cases with strong evidence of innocence include: Carlos DeLuna Texas Conviction: 1983, Executed: 1989 Ruben Cantu Texas Convicted: 1985, Executed: 1993 Larry Griffin Missouri Conviction: 1981, Executed: 1995 Joseph O’Dell Virginia Conviction: 1986, Executed: 1997 David Spence Texas Conviction: 1984, Executed: 1997 Leo Jones Florida Convicted: 1981, Executed: 1998 Gary Graham Texas Convicted: 1981, Executed: 2000, Claude Jones Texas Convicted 1989, Executed 2000 Cameron Willingham Texas Convicted: 1992, Executed: 2004 Also Noted – Post-humous pardons and new information about people who may have been wrongfully executed prior to 1976.”