Robert Roberson absent from hearing before Texas lawmakers after his execution was halted CBS NewsWhat’s next in the complex case of Texas death row inmate Robert Roberson CNNTexas man whose execution was halted doesn’t appear at state Capitol after subpoena The Associated PressGreg Abbott urges Texas high court to block Robert Roberson testimony Houston Chronicle Texas House Postpones Testimony of Death Row Inmate in Shaken Baby Case The New York Times