Texas police: Teacher closed propped-open door before attack

The Robb Elementary School teacher who propped open an exterior door that law enforcement

said a gunman used to get inside and kill 19 students and two teachers had closed the door but it did not lock, state police said Tuesday.

Investigators initially said the teacher had propped the door open with a rock and did not remove

it before Salvador Ramos, 18, entered the school in Uvalde, Texas, on May 24.

Investigators have now determined that the teacher, who has not been identified

removed the rock and closed the door when she realized there was a shooter on campus but that it did not lock

said Travis Considine, chief communications officer for the Texas Department of Public Safety.

Considine said the teacher initially propped the door open but ran back inside to get her phone and call 911 when Ramos crashed his truck.

He continued: "We did verify she closed the door. The door did not lock. We know that much and now investigators are looking into why it did not lock."