From the photos, the triage area seems staged. Arredondo (who looks like he’s from central casting), can be seen standing/waiting by (big cowboy hat and flags in hand) over several minutes as if for a cue. Other victims without visible injuries were prioritized and given available stretchers while Bauman with missing legs was taken last and in a wheelchair.

The photos are high-quality and very clear and time stamped every few seconds. I think they were captured by a nearby bank security system. It’s been a while since I looked at them at some conspiracy site - not sure if they’re still around.