[Fred Nerks]

...Wouldn’t he have some kind of backup or listening devices going?

I'm quite sure he did. But the cameras are gone and his backup in the corridor maintains he was shot in the leg.

imo

[Steve Van Doorn]

Oh. That is an interesting twist. "Jesus Campos" was his backup. That is very likely. When you hear the first cop that arrived on that floor describe Campos he gave an unusual long hesitation then said, "security guard"
I didn't put that together until you pointed it out.

Someone on youtube was claiming the elevators where shut off at some point. Do you know if that is true?
Thanks