There are two additional inmates on death row in South Dakota.
Briley Piper was also convicted in the kidnapping and murder of Chester Poage. A circuit court judge sentenced him to death, instead of a jury.
Piper has gone to the state Supreme Court several times to appeal his case.
Earlier this month, he accused his previous attorneys of giving him bad legal advice when he declined a jury trial.
The South Dakota Supreme Court is still deciding on that case.
Charles Rhines is the second inmate still on death row.
He was found guilty of the 1992 stabbing death of donut shop employee Donnivan Schaeffer.
Recently, the ACLU has gotten involved in his case, saying jurors at the time were biased against Rhines because he’s gay.
He still has time to take his case to the U.S. Supreme Court.