All I recall at the moment without checking various articles is that one (Campos) said he was on the floor as a result of a report that a doorway (fire exit?) was jammed and the other,(Schuck sp?) said he was sent to the floor for the same reason, found Campos wounded on the floor and Campos called out to him ‘take cover’
The door in question was directly opposite the second entry to the hotel suite. Very handy for an exit...
I imagine that fire door (leading to stairs?) allowed the perps to make their exit. Up or down? Easy to blend with hotel guests and leave the hotel. I imagine exit from the stairs would be to any chosen floor...
If you’ve had an epiphany, it’s no great mystery.