Byron Black, a death row inmate with dementia and multiple organ failure, was executed by lethal injection despite having an active heart device his attorneys argued could cause extreme pain. Witnesses say he appeared to suffer during the procedure,

Byron Black is scheduled to be given a lethal injection after a legal battle about whether a working defibrillator in his chest would cause him pain.

Edward Zakrzewski, a former Eglin Air Force airman, was sentenced to death for killing his wife and two children in 1994.