A week after death row inmate Robert Roberson was set to die, the extraordinary quest to save his life has morphed into a deepening political battle between Texas House lawmakers and the state's leading Republicans as they trade bitter accusations and push conflicting narratives around his guilt -- or likely innocence.

It's been a week since death row inmate Robert Roberson's execution was stopped by a last-minute subpoena, and now Roberson's legal team is firing back at Texas Attorney General Ken Paxton.

With his execution looming last Thursday, the 57-year-old Texas death row inmate watched as his attorneys’ legal arguments were rejected in the courts and his pleas for clemency disregarded, as the state parole board declined to recommend he receive a lesser sentence or reprieve.