Did anyone else notice the crowd's reaction, or lack thereof...

[Sympthsical]

16. They didn't "whizz right by" the people on those bleachers

Those people were much farther behind Trump than the camera makes it seem, and the bullets hit the bleachers to the left of Trump. The people behind him were not struck or hearing/seeing bullets land around them.

If you look at additional footage, the people on the bleachers that were in the line of fire were ducked/lying down. They knew right away.

When you're in a crowd and hearing popping sounds, it is not always readily apparent what you're listening to. Because it's an unusual event, the mind doesn't immediately register obvious danger. However, if you're law enforcement or a veteran, etc. you might be quicker to react from experience. You know what you're hearing.

I posted a pic of the layout that might give you a better idea.

https://democraticunderground.com/100219150986