Acting Uvalde police chief during school shooting steps down

Mariano Pargas is the second police leader to leave law enforcement in the fallout since the massacre in May, when hundreds of officers waited more than an hour to confront the gunman inside a classroom at Robb Elementary School.

Two decades of active shooter response strategy ignored in Uvalde

A total of 376 officers converged on Robb Elementary School in Uvalde, Texas — more than the entire police force in a midsize American city like Fort Lauderdale, Florida, or Tempe, Arizona. But for more than 70 minutes on May 24, not one officer stopped the shooter.