"Er....Why did it take so many years to test his DNA, when DNA testing has been around so many years now?"
Excellent question! DNA testing, while it might be expensive, seems like a no brainer to me. It would be useful in many types of cases, but particularly in a rape case it should be standard procedure. I've read of cases where people were exonerated by testing it, but only after they or their family were able to raise the money for the test. That is shameful!
If the courts are so interested in justice, it would seem they would be more than willing to go back and reexamine questionable cases where potential DNA evidence was secured. Innocent people being sent to prison seems to be occurring much too often. I just can't imagine an innocent person being sent into one of these violently insane environments. It's the stuff scary horror movies are made of.