So!
Back to reality................

I have four simple questions for anyone on Team Keep LHO Off Dem Steps (well, anyone other than Mr. O'Meara, who is excused on compassionate grounds) that doubts my claim that Towner shows Mr. Lee Harvey Oswald in the doorway waving a flag at Pres. Kennedy whilst Mr. Billy Lovelady is seated on the steps just to his east:
1. What do YOU believe is being waved here?
2. Where do YOU believe it is being waved from?
3. Who do YOU believe is waving it?
4. To whom do YOU believe the red area behind the flag, marked below by yellow arrows, belongs?
You've actually solved this conundrum without realising it.
In an earlier post you made the following observation:
Friends, I've long been bugged by how pink Mrs. Madie Reese's coat is showing up in Towner:
But nothing like a Davidson Stabilization to sort out signal from noise.
That pink ain't from Mrs. Reese's coat. It chiefly belongs to the raised (unsleeved) right forearm of this lady whom Towner catches after she's raised it to wave:

If you look to the left of the woman you identified there is another woman dressed in black. As the limo passes she raises her arm and is waving something. She can be seen quite clearly in this gif:

Going back to Towner.
If you are correct in your interpretation then we should be able to see the woman dressed in black, with her arm raised, waving something.
In the pic below the woman you identified is in the orange box.
To the left of her is the woman dressed in black with her arm raised:

It can hardly be a coincidence that where we would expect to see whatever the woman in black is waving is the same area we see "Oswald's Flag".