[Randy Larsen]

After slamming his head into the concrete wall, is he also expected to yank the unconscious body away from the wall? My first aid training taught me to never move a victim of trauma!!!

[Moonman62]

His head wasn't directly or intentionally slammed into the wall. The officer knocked him to the ground and he hit his head as a consequence of that. After watching the video a few more times it appears that the officer is keeping his eyes on the suspect's hands and getting the hands immobilized as soon as possible, which in such a situation is what he's trained to do. Due to the quality of the video and lack of audio, there is no way to tell the suspect's level of consciousness. It is common for the majority of the damage after brain injuries to occur some time after they happen. There is no mention of spinal injury.

Your question is good one, which is why I find it significant that the biased reporter and the plaintiff's attorney didn't mention it.