“A North Carolina judge overturned the convictions Tuesday of two men who have served 30 years in prison for the rape and murder of an 11-year-old girl after another man’s DNA was recently discovered on evidence in the case. Superior Court Judge Douglass Sasser ordered the immediate release of Henry McCollum, 50, and Leon Brown, 46. The half brothers were convicted in the 1983 slaying of Sabrina Buie …. Authorities said McCollum, who was 19 at the time, and Brown, who was 15, confessed to killing Buie. Attorneys said both men have low IQs and their confessions were coerced after hours of questioning. There is no physical evidence connecting them to the crime. … The DNA from the cigarette butts doesn’t match either of them, and fingerprints taken from a beer can at the scene aren’t theirs either.”
http://www.cbsnews.com/news/judge-overturns-murder-rape-convictions-for-2-who-served-30-years/
What can I say? The police had that evidence all along. But it’s always easier and quicker to “solve” a big case, especially one that inflames a community like the rape and murder of a little girl, with confessions. 
Btw, clicking the link gets you McCollum’s and Brown’s mugshots revealing their race. Do you need to wonder? This is, after all, North Carolina.
Update: Daily Kos tells us that, in 1994, Supreme Court Justice Antonin Scalia held up these two innocent men as poster boys for the death penalty. Oops.