— Frustrated onlookers urged police officers to charge into the Texas elementary school where a gunman’s rampage killed 19 children and two teachers, witnesses said Wednesday, as investigators worked to track the massacre that lasted upwards of 40 minutes and ended when the 18-year-old shooter was killed by a Border Patrol team. “Go in there! Go in there!” nearby women shouted at the officers soon after the attack began, said Juan Carranza, 24, who saw the scene from outside his house, across the street from Robb Elementary School in the close-knit town of Uvalde. Carranza said the officers did not...