"
Supposedly there is another witness and a still photo of the prep on top of the cop on the ground. They supposedly struggled for 2 minutes."
It's a blurry frame from the beginning of Santana's video (wiggling past the scene). Looks like Scott. That's Scott's legs in front of him on the path--not big enough to be the voluminous posterior of someone else. Scott was wearing dark blue pants, a bit of white undershirt showing through above the pants, white or light colored sneakers. Slager is not seen in the frame.
http://www.freerepublic.com/focus/f-bloggers/3278316/posts?page=424#424
And the frame as posted might have been manipulated (outside of the chain of evidence, plucked out of a video, then whatever, who knows, and posted to a discussion board). Slager can't be seen in it at all. It might as well be an image after a rumored UFO sighting.
Where did the "2 minutes" rumor come from? Did it come from one of the city or state officials involved or someone else chatting through the Internet?