In September, 2012, Jack McCullough was convicted of a murder committed in 1957. The conviction was based largely upon an eyewitness identification made 53 years after the crime by a woman who was 8 years old at the time of the crime. The unreliability of eye witness identifications has been well documented; but 53 years after the crime, and by an 8 year old?!
In addition, if you read about the exculpatory evidence that the judge ruled McCullough was not allowed to present at trial, including an alibi and the fact that he had been cleared by investigators, you have to believe he has a case.
See the CNN story and video here.