Texas state lawmakers subpoenaed Roberson to testify in a bid to block his execution in a case centered on “shaken baby syndrome” science that has since been refuted.

In yet another 11th-hour development in the case of death row inmate Robert Roberson, a splintered Texas Court of Criminal Appeals struck down a lower court’s order halting his execution in a late-night ruling Thursday.

Texas high court halts the execution of a man whose conviction was tied to shaken baby syndrome diagnosis. Supporters say it was based on outdated science.