Could be, on your second part. I don’t think the first part works because it would mean that the killing shot that put Brown face down and on the ground a few feet from the cop was shot #7, which was followed by the pause and then four additional shots. If Wilson took those four additional shots after Brown was down (and likely dead) by the killing shot it opens up a whole bunch of other questions.
Yes, it’s all speculation. But still worthwhile given human nature to figure things out working in groups than alone.
Yes, that would mean the first group was sufficient and the second criminally unnecessary ... but then prosecution would have to address why the second occurred at all, and why he completely missed a stationary target at close range yet hit (6 of 7 times!) a moving target at farther range.
I’m leaning more toward it being 4 of 7 at arm, pause/assess, 2 of 4 at head. More consistent with the subgrouping of indicated impacts plus likely poorer accuracy overall.