Exodus 2:23-25
23 During those many days the king of Egypt died, and the people of Israel groaned because of their slavery and cried out for help. Their cry for rescue from slavery came up to God. 24 And God heard their groaning, and God remembered his covenant with Abraham, with Isaac, and with Jacob. 25 God saw the people of Israel—and God knew.
Nicol would have had to look out the one window on the Trump side of the building to see the shooter down to have known. That's the only vantage point confirmation could have been made for Nicol to then make it down stairs to greet other officers at the door as per other videos. That window would have made an excellent place for an assassin to try to shoot Trump...
For those who may have not been paying much attention 3 months ago... Greg Nicol (not a local cop but a cop from regionally near by) was presumably the only person in the second floor of the AGR building adjacent to where Yearick shot at Trump from... the building that has a window approximately 150 feet away facing the same direction toward Trump... he and his wife(1st responder) were some of the first on the roof to examine the body... Nicol is highly suspicious as a possible primary shooter but there is no convicting evidence he was involved other than a lot of being in the right place at the right time with the skills necessary and a wife on the spot to assist.
So if 100 people were bussed in and an equipment van brought in a bot farm of another 600 or so phones we have about 1000 "attendees."