MONTGOMERY, Ala. — The execution of Anthony Boyd by nitrogen gas in Alabama on Thursday marked the longest use of the untested method in U.S. history, stretching nearly 40 minutes amid convulsions, labored breathing and witness accounts of prolonged agony. At 37 minutes from the start of the procedure until death was declared, Boyd's final moments have reignited fierce debates over whether the oxygen-deprivation technique — touted by states as a painless alternative to lethal injection — constitutes cruel and unusual punishment.
Striving for a World without Capital Punishment