This is actually pretty good proof of fake news... AP and CNN will have a hard time denying it. Wish the video ran just a little longer and actually showed the crowd dispersing right after the staged event.
The other thing to note in the AP image is the 'protesters' held their signs at the right height and in the right locations to mask the absence of any people between that thin line and the people by the wall in the background. That tight shot gives no depth to the scene, but with the exception of one gap, the impression is given that the street is full. However, there are no signs behind those being held up, and you'd expect to at least see the tops of some behind them if there was any depth to the 'crowd'. The conclusion is that there was no crowd, only a well placed handful of people. (Those in the background don't seem much interested, really in what is going on, either--not like an active participant in front of a Major Network camera.)
Now, that is working the problem backwards, in a way, because we know there were hardly any people there, but those are things to look for in images in the future which might be a little better staged which will reveal the scam.