I don’t know enough either, I gave it a looksee and didn’t see anything immediately from counter-snipers, but they’re also in broad daylight, shaky video. The water tower is within shadows, pretty sure you’d see something. But, I’m telling you, it’s a digital artifact. I’d bet a steak on it.
The whole thing is a convoluted mess. It’s a terrible thing when we don’t have an investigatory body we can trust to tell us the truth.
With all the video that was taken, hopefully there are other videos that could clarify some of the questions at least.