So he didn't even go to jail 
Examples please?
This kind of stuff is easy to google, ya know:
Clarence Chance and Benny PowellCounty: Los Angeles
Convicted of: 1st Degree Murder and Robbery
Year of Conviction: 1975
Sentence: Life without parole
Year Released: 1992
Years Served: 17 years
Wrongful Conviction Factors: Police misconduct; perjured testimony; false informant testimony
On a December night in 1973, Clarence Chance was being held in a county jail. Yet, he was ultimately convicted of robbing a gas station and murdering an off-duty sheriff's deputy in the men's room that same night. Chance and his codefendant, Benny Powell, served 17 years for a crime that they did not and could not have committed.
While in prison, Chance and Powell refused to give up hope and eventually, someone responded to their pleas for help. Jim McCloskey of Centurion Ministries tracked down three witnesses who said that the LAPD had pressured and coerced them into giving their false testimonies. On this discovery, county prosecutors joined the investigation and discovered that police had not revealed the fact that the jailhouse informant who gave key testimony had failed two polygraph tests. After four years of investigation, Los Angeles County District Attorney's office joined defense lawyers in asking that Chance and Powell be freed.
When finally releasing Chance and Powell, Los Angeles Superior Court Judge Florence-Marie Cooper gave a judicial apology for the "gross injustice" of the time they spent in prison. "Nothing can be done to return to you the years irretrievably lost," she said. Since their release, each of them has been awarded $3.5 million dollars for their wrongful imprisonment. [/i]
http://www.deathpenalty.org/article.php?id=407