In Reply to: Possible answer and link inside. posted by SM on Mon, May 30 2022 at 01:24 PM CDT:
: McCraw also provided more information about how the shooter was able to gain access to the building: A teacher left the school to get her cell phone when she heard the nearby car crash and shots, but then as she re-entered, she propped the door open. The gunman had been hiding behind a car nearby, he said.
: https://www.opb.org/article/2022/05/27/police-delay-confronting-uvalde-school-shooter/