They conveniently left off the part where the first guy chasing this kid had a handgun and fired off shots.
1st video in the car lot you can clearly hear pistol shots followed by the rifle shots.
You heard gunshots? You did not see who fired them. There is no picture or video of red shirt with a gun. In the case of the disarmed guy, someone came in and retrieved his gun and walked away.
I am not saying that red shirt did not have a gun, because I have seen no evidence either way.