Rhode is the 25th person put to death by lethal injection in the state, and the 48th person put to death by the state since the U.S. Supreme Court reinstated the death penalty in 1976.
Rhode was convicted in 2000 for a triple-murder of a father and his two young kids during a robbery of their Georgia home. He was 20 at the time he commited the crime.
Rhode did not request a final meal and received the standard meal tray being served at the prison. His final meal consisted of a chili dog, tater tots, carrots, cole slaw, a slice of cake, and fruit punch.
Rhode's execution came on the heels of another high-profile execution in Virginia last week that also brought into question the legality or at least the morality of executing offenders with limited mental capacity.
Teresa Lewis, 41, died by lethal injection on Sept. 24, putting an end to a long debate over whether Lewis deserved to die, with supporters saying she was borderline mentally retarded, despite the prosecution's claim that she was the mastermind of her husband's and stepson's murders.
Lewis' final words were a message for the daughter of the husband she had killed.
"I just want Kathy to know that I love her, and I'm very sorry," she said.