The video link from the San Diego Tribune is http://www.signonsandiego.com/news/metro/audiovideo/070420border.wmv.
Are both of these links edited versions or only the one from the Tribune?
Technically I guess they are both edited, however the clip from btfh.net shows relevant footage. The SDUT edited the footage that was leaked, taking out the fight with the smuggler and the rocking by the smugglers on the southside.
Here is another version... it looks the same as btfh.net, but without the seal of the Border Patrol and the audio enhancements. The btfh version seems to be the best quality.
http://www.youtube.com/watch?v=PBUjYwlh9fI
At the very beginning of the video, before the rifle shot, it looks like there are 3 agents there... one gets into the passenger side of the BP Truck in the front while another agent appears to be getting out of the truck as the camera pans southward and it disappears on the screen. When it pans pack, there is only the one agent on the screen.