Robert William Clayton was executed by injection for...

Robert William Clayton was executed by injection for the 1985 killing of a Tulsa woman. Robert William Clayton, 40, was pronounced dead at 9:10 p.m. from a lethal dose of drugs. He was the ninth inmate executed in Oklahoma this year. Clayton was convicted of murdering Rhonda Timmons, 19, in her apartment. Timmons was stabbed 12 times and was beaten and straggled with her bathing suit top. "I want to say I'm glad I'm leaving this place and I'm going to a better place," Clayton said in his final statement. "I love my family and I'm sorry for this other lady that was killed. "You're still killing an innocent man," he said. "May God have mercy on my soul." The lethal flow of drugs began at 9:07 p.m. Clayton quickly became unconscious and was declared dead 3 minutes later. He was originally scheduled to be the 1st inmate to be put to death this year, but was granted a stay 1 day before his Jan. 4 execution date. The stay allowed him to pursue DNA tests on lost evidence recovered just days before he was to be strapped to a death row gurney at Oklahoma State Penitentiary. But evidence testing by the Oklahoma State Bureau of Investigation confirmed Clayton as the killer.