I'm taking it the cabby is using the return road on the Mandalay property and the shots are originating from the same wing as Paddock but from a lower floor? I haven't seen any footage of more broken windows other than the ones on the 32 floor? But those flashes sync to the gunfire noise.
Here is a video of the 32 floor with the audio of the shooting. What is absent in this video is gun flashes....[www.youtube.com]