There is only the eyewitness report. Don’t mix my words with his if your intention is to be accurate.
You said:
"At a certain point in time you have to assume he was able enough to run. I guess this means he would be on top at this point to enable that. No?"
I believe the video shows the officer prone. It shows the suspect not prone.
I believe people are rushing to judgment and regurgitating what they hear their TV telling them.
I am a retired police officer.