I just listened to this last night: http://www.thestory.org/stories/2013-06/scott-hornoff

An innocent cop went to prison for 6 years until the murderer came forward with a confession. There was basically no evidence to put him away, but he was having an affair with the victim at the time, which made him suspect number one. The part that really upset me was that he was basically unemployable after he came out. He was awarded $600k in backpay when released, but $200k went to his lawyer and the rest to his ex-wife.