Interesting.
The RT crew just happened to catch the extras carrying the mannequin / EMT prop dummy back to the original starting point before they would carry the same dummy back away from it. Thus video footage would thus always show activity without ambulances pulling up to the 'crime scene' which would have betrayed that it all was a hoax.
They had to use a light EMT dummy / mannequin because it had to fit the meme that there were no stretchers but the six extras in this crew, as well as the others, would be carrying it back and forth repeatedly for the duration of the filming / 'performance'. Notice the only person with a smudge on him was the lead idiot in the hat, the others carrying the mannequin and the mannequin itself are spotless i.e no blood in the least.
In the video below they accomplished the same activity at Sandy Hook by recycling the extras out the bay doors of the firehouse and then had them walk around to the rear to re-enter it and thus come out again and again. Notice the dweeb in the yellow T-shirt below. He is too obvious and in other videos it concentrates on the female assistant director coming out to tell him to put some reality into it and when he still does not get it, she walks him around back, puts a dark shirt on him, sends him back out, and he still waddles back and forth as a duck. Gene Rosen is also visible in this pacing back and forth at the corner of the firehouse practicing his lines, at the location where the "green screen' was later set up for the interviews.
Sandy Hook Hoax ~ Walking In Circles Around Sandy Hook Firehouse