I was at the show, and outside right when the cops showed up. I was looking for news on what happened after we left, but this thread was all I could find.
I don't know what happend initially, but I heard that the first guy that got arrested kicked someone outside, and security had him on the ground.
At that point, there was only 1 officer on the scene, and he had the first guy in cuffs, searching him by his car. He wasn't being agressive or anything, but his friend starting yelling at the cop saying, "Why are you arresting my friend!?!"
Guy #2 was standing about 10-15 ft away from the officer, with his hands crossed behind his back, in a non-threatening gesture. The cop told the guy to stay back and for the most part he did.
Backup arrived, Guy #1 gets put in the car, and the first officer stares down guy #2 and storms up to him and slams him in the chest as hard as he could with both hands. The guy gets lifted a couple feet off the ground and then onto his back.
Everybody saw it, as the show JUST got out, and people started going nuts. I started yelling, asking for badge numbers, but they wouldn't tell them to me. I did get the car number of the first officer though...89142.
Anyway, that's what happened, it was a pretty fucked up show of police brutality and unnecessary force. But I got a good view of it as I was standing right on the curb watchin it from 10 ft away.