Johnny Frank Garrett's Last Word

In 1968, when a 76-year-old nun is raped and murdered, a teen from the wrong side of the tracks is tried for the murder and sentenced to death in spite of his insistent claims that he is innocent. On the day of his execution, the young man writes a letter, promising revenge from beyond the grave. Soon after his execution, those involved start dying, and one of the jurors sets out to uncover the truth.