FILE - This undated file photo provided by the Arkansas Department of Correction shows Jack Jones, who was executed with the use of the sedative midazolam on April 24, 2017., in Varner, Ark. During Jones' 14-minute execution, his chest rose and fell intermittently for the first several minutes, and a prison official several times touched Jones' face and put a tongue depressor in the inmate's mouth. Questions about whether midazolam can prevent prisoners from suffering while they die have persisted since several states in 2014 began using the drug as part of their lethal injection protocols. (Arkansas Department of Correction via AP)
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