UVALDE, Texas — The state agency investigating the mass shooting at an elementary school in Uvalde has determined that the commander facing criticism for the slow police response was not carrying a radio as the massacre unfolded, a Texas state senator said Friday. Sen. Roland Gutierrez told The Associated Press in a brief telephone interview that a Texas Department of Public Safety official told him school district police Chief Pete Arredondo was without a radio during the May 24 attack by a lone gunman at Robb Elementary School that left 19 students and two teachers dead.