The audio of the shooting reveals 7 shots to my ears. A group of 3, not tightly grouped .. and then sounds like 5 in quick sequence in response.

Certainly by now it's absolutely known how many the shooter delivered and how many the LE sniper delivered. All reports sound exactly similar?

I've seen no discussion about the, to me, odd actions of the LE sniper who at first is calmly trained on something. Then quickly looks up over his sights and then goes back to his sights and begins shooting having to move his rifle AND tripod in the process.
Question: that LE sniper has (supposedly) come out, self identified, saying he had the shooter in his sights and was not given permission to shoot.
So why all the "action" and repositioning just prior to firing his weapon?

One other thing .. don't snipers always work with a spotter w/ binoculars? NO spotter for those two LE snipers? Haven't seen anyone else mention that so it may have been standard protocol for that situation I don't know