The alert on Tuesday, however, was horrific: a gunman had entered Robb Elementary School.Ĭustoms and Border Protection agents were among the first to respond to the mass shooting, in which at least nineteen children and two teachers were killed. Agents often act as first responders to emergencies in their communities. When Border Patrol radios crackled with a request for aid from local Uvalde police on Tuesday, it was nothing out of the ordinary.
