I read somewhere yesterday that the "unlocked door" was actually "propped open". Today I heard that the Children's Health Defense League (RFK Jr.'s organization) reported that the door was propped open by a teacher. If true, I'd like to know who the teacher was and why that teacher propped the door open. I haven't watched a lot of the videos, but does anyone know if, out of all the doors, the shooter just coincidentally gravitated toward that one?