By Steven White The heartless final words of executed killer Michael DeWayne Smith have emerged following his execution in Oklahoma on Thursday. Smith died by lethal injection was pronounced dead at 10:20am local time at the Oklahoma State Penitentiary in McAlester. The death row inmate was convicted of shooting to death two women in two separate incidents in February 2002. Given the opportunity to say any last words, Smith uttered: “Nah, I’m good.” The son of Janet Moore – one of his victims – Phillip Zachary Jr. and niece Morgan Miller-Perkins witnessed the execution from behind a one-way gl…