Oscar Franklin Smith is scheduled to die by a new lethal injection protocol for the 1989 murders of his estranged wife and her two teenage sons.

Tennessee has a new protocol Smith was set to be executed back in 2022 before Republican Gov. Bill Lee gave him a last-minute temporary reprieve as the state reviewed its lethal injection protocols.

Smith's execution first to use new protocol Gov. Bill Lee, who denied Smith's clemency request May 20, had stepped in at the 11th hour to stop Smith's lethal injection years before.