So he is standing there arms up and the cop hits him in the arm a bunch more times? 
He then hits him in the eye
and finally the top of the head?
NO SHOTS CENTER MASS
What makes sense for no shots center mass is a guy running full steam back at a cop arms pumping...bent over at the waist slightly
Cop fires away...strikes him in the arm a few more times, then scores one to the eye.
The animal drops with a face plant, and as he is falling straight down, the shot to the top of the head occurs

He then hits him in the eye
and finally the top of the head?
NO SHOTS CENTER MASS

What makes sense for no shots center mass is a guy running full steam back at a cop arms pumping...bent over at the waist slightly
Cop fires away...strikes him in the arm a few more times, then scores one to the eye.
The animal drops with a face plant, and as he is falling straight down, the shot to the top of the head occurs