I question that, I saw the video of the older brother spread eagle on the road or driveway near a funeral home with police with guns drawn. I feel certain there would be video of the brother running over him if it had happened during this time.
You saw a video of someone else who they arrested for another crime. If you look closely you will see that the older brother looks different ( e.g. Hair, build, face) than the one you see in the video.
Warning gruesome photo....
Did he look like the corpse in this photo?