A guard foiled an attempt by Woody Harrelson's father to escape from the prison where he's serving life for assassinating a federal judge, authorities said. Charles Harrelson, 56, and bank robbers Gary Settle, 29, and Michael Rivers, 56, used a makeshift rope to scale a wall at the Atlanta Federal Penitentiary. They surrendered Tuesday night after a warning shot was fired from the guard tower, a prison official said. The men were placed in a special unit at the maximum-security prison pending an investigation, said prison spokesman Mike Binion.