(Jerry Larson/Waco Tribune-Herald via AP) In this Thursday, Feb. 28, 2019 photo, Gordon Coble, center, is led out of the of the Texas State Penitentiary in Huntsville, Texas, after reacting to the execution of his father, Billie Wayne Coble. Chaos erupted outside Texas' death chamber Thursday night when the son of the condemned inmate pounded on the chamber windows, shouted obscenities and threw fists after his father spoke his final words.