This is an wonderful example of the proper restraint cops need to use. It's also a wonderful example of how difficult that can be.
One thing I don't agree with is that a suspect who has his hands in the air can draw and fire on the cop before the cop can pull the trigger. The cop is already drawn and aiming at the suspect, presumably center of mass, right? How could someone with hands in the air draw, aim and fire before the cop can get a shot off?