Texas lawmakers were expected to hear testimony at the state Capitol on Monday from Robert Roberson, a death row inmate whose execution was temporarily called off last week. But Roberson ultimately did not appear before the legislative panel as planned, after Attorney General Ken Paxton’s office refused to let Roberson give testimony in person, citing security concerns, and the legislature declined to have him appear virtually because of his autism and lack of familiarity with modern technology after more than 20 years in maximum security prison.