Having caught the first shot on video from body cam BWC2122110, things get really easy.
All you do is watch any video and concentrate on window 3 of building 6 and you would be surpised that everything matches up!
Here is just one example taking Stewarts video, everybody knows the sequence from the time zone T-15 to T+15, but has anybody looked prior and after that? Probably not as much as the shooting part, because there is not much to see except a hourse riding by 
. But let’s take a deeper look and concentrate on window 3 prior and after the shooting and you will be surprised what you can see.
This is what an empty window should look like:
Throughout the whole video, you should be seeing a boring empty window.
However in Stewarts video Window 3 changes by the second!
Take for example T-1Min34 sec:
You can allready see that the window is open a crack and the helper is seen with is head lamp on the lowest dim level. Is this a fatal mistake he made, thinking that his head lamp was off, but in reality it is at the lowest dim level? Luckely for us, because throughout the whole video, you see every mouvement from the helper with a perfect back light contrast, something you would never have seen if his head lamp would have been off.
Here is T-48 sec
What’s that rope or tape doing there?
And T+2Min 56sec
The last time you see window 3 in this video, you can clearly see the two separate windows (upper window and lower window) which is in accordance with our findings how they shot through the open upper window.
For those who want to know more about the upper and lower window of window 3 please have a look here:
Now that the back traced bullet trajectory shows to window 3, is the mosaic starting to show us a picture?