I’ve heard the following theories on why the second window was broken:
1. To provide a draft to help clear all of the smoke that would be produced in the shooting
2. That otherwise the air pressure from just the one broken window could suck a man right out it
3. To have a better vantage point to shoot at the fuel storage tanks at the airfield
Hmm, another observation & question:
In the diagram of the hotel rooms, the suite and the smaller adjoining room were rented by the perp, and both had broken windows.
Why rent both rooms?
How did the Aussie guy get the room number right next to the suite, if the perp had rented both?
If the perp rented only the suite, there’s still the question of how he got into the adjoining room to break the window.