Governor Mary Fallin received a letter from a personal representative of Pope Francis asking the governor to stop the execution of Richard Glossip.
Glossip is scheduled to die by lethal injection at 3 p.m. Click the image or here for a bigger version of the letter.
The son of the victim in Glossip's case, Barry Van Treese, sent a statement regarding the Pope's letter saying it was "interesting."
"I believe that if the death penalty was a more frequently used method it would in turn lessen heinous crimes simply because no one wants to die before their time," Daniel Van Treese wrote in a message to NBC News.
"If people feared the reproductions of their actions, they would presumably take different actions."