Robert Roberson hopes he will again avoid becoming the first person in the U.S. executed for a murder conviction tied to the diagnosis of shaken baby syndrome.

Last year, lawmakers waded into a dramatic feud over the case of death row inmate Robert Roberson, seen as the embodiment of the failures of Texas’ junk science law.

The state’s highest civil court ruled that legislators can’t use subpoenas to block death row inmates’ executions, but suggested there’s still time for Roberson to testify before a Texas House panel.

With Roberson’s options dwindling, a House panel used its bully pulpit to prove his case and excoriate the failures of the state’s junk science law.

The state’s highest civil court said it wants a lower court to resolve a separation-of-powers issue raised by a group of Texas lawmakers who subpoenaed the death row inmate the night before he was set to be put to death.