FILE - This Oct. 9, 2014, file photo shows the gurney in the the execution chamber at the Oklahoma State Penitentiary in McAlester, Okla. A state with one of the busiest death chambers in the country in recent decades, Oklahoma will enter its third year without an execution in 2018 while prison officials and state attorneys work to fine tune its procedure for putting condemned inmates to death. (ANSA/AP Photo/Sue Ogrocki, File) [CopyrightNotice: Copyright 2017 The Associated Press. All rights reserved.]