In this undated file photo provided by the Arizona Department of Corrections, an unidentified Arizona Corrections Officer adjusts the straps on the gurney used for lethal injections at the Arizona State Prison at Florence, Ariz. The prolonged execution this week of an Arizona death row inmate with a new, two-drug combination highlights the patchwork approach states have been forced to take with lethal injection drugs, with the types, combinations and dosages varying widely.
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