later informed the DOJ that it should not use the affidavit at trial, but the prosecutor Ted Greenberg decided to use it anyway. While in prison, Wilson campaigned vigorously for his innocence and repeatedly filed Freedom of Information Act requests with the government. Eventually, he found information linked to the memo and hired a new lawyer. His lawyer was David Adler, a former CIA officer who had clearance to view classified documents. Adler spent long hours poring through thousands of files and eventually found 80 incidents where Wilson met on a professional basis with the CIA and proof that the CIA had indirectly used Wilson after his retirement. In October 2003, by U.S. District Judge Lynn Hughes, overturning his conviction on the explosives charge, found that U.S. Justice Department prosecutors knew Wilson had worked for the CIA. Wilson was released from prison on September 14, 2004, after being incarcerated for 22 years. Over 12 of those years were in solitary confinement. Civil action Wilson filed a civil suit against seven former federal prosecutors, two of whom are now federal judges, and a past executive director of the CIA. On March 29, 2007, U.S. District Judge Lee Rosenthal dismissed his case on the ground that all eight had immunity covering their actions. Later life After his 2004 release from prison, Wilson moved north of Seattle to live with his brother. On 10 September 2012, Wilson died of complications from heart valve replacement surgery, survived by his sons Karl and Erik, sister Leora Pinkston and girlfriend Cate Callahan. Further reading Danny Casolaro's research at the Missouri State Historical Society References External links Opinion on Conviction (PDF) US District Judges opinion on the Wilson Conviction Judge dismisses Wilson's civil case justice denied article 1928 births 2012 deaths American spies CIA agents convicted of crimes United States Marine Corps officers Overturned convictions in the United States People of the Office of Naval Intelligence