Pima County Sheriff's Department spokesperson Deanna Coultas
said that when officers entered the school after the shooting, they were able to coordinate their response with staff members who followed the emergency plan.
I know that the school did go to what they call lock down, where people stayed in the rooms where they were at - nobody was coming or going, Coultas said.
The Sheriff's Department had a very coordinated response, Coultas added.
Sheriff's deputies and S.W.A.T. officers searched the building room to room - talking with staff members still inside - for other victims and possible suspects, and then escorted people outside, Coultas
added that officers were also given building design plans so they could navigate the corridors and classrooms.
Although Arizona law requires municipal governments to have emergency response plans, it does not apply to school districts.
But a bill going through this year's legislative session could change that.
After the Columbine shooting, Arizona Sens.