Byron Lewis Black, convicted for the 1988 shooting death of his girlfriend and her two young children, was executed in Tennessee on Tuesday morning. He was 69. Black died by lethal injection at 10:43 Central time,

Tennessee executed an inmate Tuesday without deactivating his implanted defibrillator, despite uncertainty about whether the device would shock his heart when the lethal chemicals took effect. Byron Black was executed after a back-and-forth in court over whether officials would need to turn off his implantable

Tennessee death row inmate Byron Black moaned and said he was in pain during his execution, according to reporters who witnessed the lethal injection Tuesday morning. Black's attorney said his distress was evidence he was "tortured.