If you read the story, and see the video, no one pulled a gun on a snowballer. A bunch of whiny twenty-somethings got the story messed up in their heads.

The cop with the gun out was the one responding to the 911 call of a man with a gun. And even then, it was down, pointed towards the ground.

The guy "with a gun" was a plain-clothes detective - on the video you can see he didn't ever go for the gun.