Currently watching this video:
[Removed on youtube. Bummer.]
That was “The Last Word: Johnny Frank Garrett” (2008) about rapes and slayings in Amarillo, Texas, back in 1981 and the man who was falsely accused and wrongfully executed for these crimes. Pretty hyperbolic? Yes, I know. But it’s still an interesting story.
Additional information on Johnny Frank Garrett is available on wikipedia.
DNA-testing of evidence later proved Leoncio Perez Rueda was actually responsible for the rape and murder of the elderly nun, and while he had been questioned by police early on, they had let him walk away and decided instead to pin all charges on Johnny.