DNA test proves 2 brothers not guilty

1. 2 mentally disabled teenagers were arrested in 1983.
2. They were convicted of raping and killing a young girl.
3. Both received 3 trials. Both confessed to the crime.
4. Their lawyers said the confessions were coerced.
5. Both were sentenced to death in North Carolina.
6. 31 years later, DNA evidence implicates someone else.
7. The guilty party is already in jail serving a life sentence.