Towards the end you see a bunch of agents gathered around the front doors of those buildings. I believe the latter was in-between the two buildings so you can't see it.

To me this was interesting because you can see multiple cops unsuccessfully trying to get a view of the shooter. Its absurd to me. Was like watching the keystone cops. Additionally you see just how much time there was between them seeing the threat and the shots being fired. Its clear that the shooter noticed he was spotted and took a shot while he had it.

There was plenty of time to radio Secret Service and we are told they did. Maybe I haven't seen all the video footage out there but seeing this just left me with even more disgust in our so called law enforcement's so called thin blue line. If they can't protect a former president don't tell me I don't need to take responsibility for my own personal security.