A man had his arm cut open and had his hands and wrists "burst by needles" so he could be executed by lethal injection, an investigation has said.
Joe Nathan James was executed on July 28 and staff were unable to find a vein in his hands, elbows and wrists as they tried repeatedly to find a place to put in the deadly toxins, causing multiple puncture wounds.
Experts in an independent investigation believe James may have undergone several painful attempts to find a vein and were unable to confirm if local anaesthetic was used as his arm was cut into by a blade.
