Arkansas executed its fourth inmate in eight days Thursday night, wrapping up an accelerated schedule with a lethal injection that left the prisoner lurching and convulsing 20 times before he died.
Kenneth Williams, 38, was pronounced dead at 11:05 p.m., 13 minutes after the execution began at the Cummins Unit prison at Varner.
Arkansas had scheduled eight executions over an 11-day period before one of its lethal injection drugs expires on Sunday. That would have been the most in such a compressed period since the U.S. Supreme Court reinstated the death penalty in 1976, but courts issued stays for four of the inmates.
The four lethal injections that were carried out included Monday's first double execution in the United States since 2000.
"I extend my sincerest of apologies to the families I have senselessly wronged and deprived of their loved ones," Williams said in a final statement he read from the death chamber. "... I was more than wrong. The crimes I perpetrated against you all was senseless, extremely hurtful and inexcusable."
Williams was sentenced to death for killing a former deputy warden, Cecil Boren, after he escaped from prison in 1999. At the time of his escape in a 500-gallon barrel of hog slop, Williams was less than three weeks into a life term for the death of a college cheerleader.
State officials have declared the string of executions a success, using terms like "closure" for the victims' families. The inmates have died within 20 minutes of their executions beginning, a contrast from midazolam-related executions in other states that took anywhere from 43 minutes to two hours. The inmates' lawyers have said there are still flaws and that there is no certainty that the inmates aren't suffering while they die.
"The long path of justice ended tonight and Arkansans can reflect on the last two weeks with confidence that our system of laws in this state has worked," Hutchinson said in a statement issued after the execution. "Carrying out the penalty of the jury in the Kenneth Williams case was necessary. There has never been a question of guilt."
Arkansas scheduled the executions for the final two weeks of April because its supply of midazolam, normally a surgical sedative, expires on Sunday. The Arkansas Department of Correction has said it has no new source for the drug — though it has made similar remarks previously yet still found a new stash.
Williams' lawyers said he had sickle cell trait, lupus and brain damage, and argued the combined maladies could subject him to an exceptionally painful execution in violation of the U.S. Constitution. Arkansas' "one size fits all" execution protocol could leave him in pain after a paralytic agent renders him unable to move, they'd argued to state and federal courts, which all rejected his claims.