If the autopsy report showing the wounds has them numbered in the order of shots, then the first four bullets hit him in the front of his upper body, which would mean he had turned toward the accused. It will all come out at trial.
However, the press has already convicted the officer and the majority of his life is ruined regardless of the outcome.
Looking at the video, I didn’t see any shots fired after he went down, the shots that were fired being fired in a second or two before he fell. Also. As a safe, cheap experiment, I urge you to tap your forefinger as fast as you can and count the taps while somebody times you to ten seconds. I’ve done it to see what the maximum rate of fire I could get out of a semi-auto is. Comes out to about 360 rounds per minute, or 6 rounds a second,a bit short of the 16 rounds that were allegedly fired by the defendant.