Wow seriously? How do you not get fired after jump kicking someone in the back who was surrendering? I didn't see any regard for the rider's well being, so cops just shoot and wait for an ambulance to arrive and not attend to wounds they've inflicted? because that's messed up. It's his job to apprehend not to let someone die from blood loss.
And for sure cops need to take the circumstances and the law being broken into consideration, the law isn't a black and white code. If it was a skateboard who was running from a cop because he was trespassing...does he also have grounds to shoot him to stop him because he's evading arrest?
And the point isn't even whether the rider deserves it, it's the fact that it's a police officer who is supposed to represent a set of principles and be an example. He's on duty and he needs to act in accordance with the oath he swore to uphold, not to his own emotions.