I have fully read every word of your theory and when it was first presented 5+ weeks ago with the ‘flash of light’ my curiosity was peaked. I did a DEEP DIVE INTO THESE WINDOWS.
Sorry pal, the evidence proves they did not ever open, nor was there ever sufficient unobserved opportunity, nor is it a practical firing position unless that room has some 9’ tall flat structure (maybe a big flat machine or something), but a big problem is no shooting line. People are simply in the way. These are elementary concepts.
Look Stewart’s video is just a starting point. We also have many eye witnesses including no fewer than several cops in uniform and undercover. We have the woman on the horse immediately beforehand. We have Stewart himself and whoever was with him. There’s several others in the video. Nobody saw a window open or close.
Probably 20 sets of eyeballs on these windows, directly or in periphery to a point that a open window would be OBVIOUS. People were scanning for threats.
Your concept of some magical window opening and closing in an instant demonstrates a total lack of firearms, aimed shots, timing, etc. None of that is going to work in the real world. Might work in fantasy hollywood in a movie script but in the real world it’s just far too complex and impractical to impossible.
I deal in evidence, facts. Not conjecture and improbable theories.
I agree it was probably an inside job. But these operations are designed to be low-work, low evidence trail, not complex. Complex plans have too many points of failure.
The window theory has 50 points of failure. To include, no shooting lane, too many witnesses, some predictably with cameras, windows that don’t open and would need to be replaced before hand and swapped back afterwards, then a 9’ platform in the room, a helper in the room to remove and replace the window undetected, and on and on and on.
The vent theory is plausible. The 2nd story AGR windows are plausible. The 2nd story roof is plausible. Because they’re all fairly simple, the vents are the most complex but plausible. But zero chance the shots were from any of those obviously closed windows that have no shooting lanes.