Arkansas has wrapped up an aggressive execution schedule, putting to death its fourth inmate in eight days, hours after a last minute motion to halt his execution failed before the US Supreme Court.
Kenneth Williams, 38, received a lethal injection on Thursday night at the Cummins Unit prison at Varner for the killing of a former deputy warden in 1999.
He was pronounced dead at 11:05pm, 13 minutes after the execution began.
Arkansas had initially held off on executing Williams, who was scheduled to die at 7pm local time, as officials awaited word from the Supreme Court. His death warrant was set to expire at midnight.