...
There was more they could do, and they were doing it: they were asking repeatedly for ambulances.
None came.
Quoting: Anonymous Coward 58145289 9:47:02 “S4, the building is not secure, so we can’t have anybody, uh, ambulances coming in.”
10:11:00 I got multiple ambulance personnel coming in, can we create that staging area within the School parking area?
10:12:00 Negative Newtown, any ambulances coming in will have to stage at Sandy Hook firehouse and we’ll call em up.
Quoting: Anonymous Coward 56943397 It is absolutely true that at 9:47 a.m. the scene was not safe.
Why?
Because bullets were still being fired.
However, at 9:57 a.m. when police began asking for ambulances at the scene, the only two ambulances on scene did not enter. In A3's words, "There wasn't room."
The Fire/EMS personnel telling ambulances to "stage at the firehouse" at 10:12 a.m. were not in charge of that scene, and had no authority to determine when ambulances should approach the school.
Law enforcement determines when ambulances approach a scene.
And we know what their opinion was:
9:57:43 a.m. Newtown Fire/EMS: "A2 is proceeding to the scene on the request of the police department."
10:00:44 a.m. Connecticut State Police: "Get an EMS bus up here, right away. Send the ambulance right up, right up to me."
10:00:50 a.m. Connecticut State Police: "401, get the bus! Get the bus!"
10:00:51 a.m. Newtown Police: "D5, we need buses here ASAP!"
10:01:39 a.m. Connecticut State Police: "...send EMS personnel, we're running out real quick!"
10:14:08 a.m. Newtown Police: "Roger stage them out front please."