Officer Eugene Goodman, the one who led the mob away from Congress...

It seems like we are lead to believe he was initially confronted by that first guy (with the beard and tabogan) around the steps and the first guy led the crowd up the steps where Goodman was, but who was on the perpendicular side of Goodman recording it all? Was it someone else in security? or another mobster? Did he actually move past Goodman to start the recording?

Also, where did Goodman lead them and how did it end when the mob figured out he didn't lead them where they wanted to go, but away from where they wanted to go? I suppose he just lead them to more backup?