Las vegas shooting.
I'm guessing the video was shot from this point.
Might explain the echo from the gun too.
(marked on pic)
Again, anyone that wants to know more about the FBI DNC timeline of treason. I highly recomend this website.
http://directorblue.blogspot.com/2017/12/a-timeline-of-treason-how-fbi.html
Well researched timeline with links to all relevant articles.