An inmate executed by Tennessee without deactivating his implanted defibrillator said he was in serious pain after the lethal injection started.

Tennessee plans to execute Byron Black without deactivating his defibrillator, raising concerns about potential shocks during the lethal injection.

State attorneys in Tennessee say a judge’s order to take a death row inmate to the hospital on the morning of his execution to deactivate his heart-regulating device would cause “chaos.”.

A judge is ordering state officials to turn off a death-row inmate's heart-regulating implanted device to avert the risk that it might try to shock him during his execution by lethal injection scheduled for Aug. 5.

Attorneys for a Tennessee death row inmate have launched a last-ditch effort to prevent his Aug. 5 execution.