the cab driver didn’t, but the blonde girl in the bus stop video said she did hear falling glass, so if that could be matched up to the gunfire, we’d get a time
https://www.youtube.com/watch?v=x96Kem0ZYag
around 1:31 she pops into view over the shoulder of rasta man, and about 1:45 she says ‘you could literally see glass falling” and the man with the grey beard says, yeah. I’m not sure if that, yeah, was just a conversational ok, or an agreement with her? More surreal is the bus came and picked them up!
Glass....There could have been glass falling on more than one occasion during this massacre....the initial break...and then more later for more elbow room.