Dear danny BOY o'meara,
Does your scenario somehow preclude Baker's, Truly's and Oswald's being in the 2nd-floor lunchroom "vestibule" while Adams and Styles were quickly traversing a corner of the second floor from one stairwell to another?
Spell it out for me.
-- Comrade Pinko Jerkov
I'm not sure if it does preclude it, Pinko.
This is the way I look at it -
Adams is consistent that she set off within seconds of the shooting. She specifically states that she had decided to race downstairs before the limo had even reached the underpass.
This would have her in motion within 10 seconds of the shooting.
For me, this is confirmed by the Dillard photo which shows the fourth floor open window which Adams, Styles and Dorman were positioned in front of during the motorcade. The Dillard pic is taken around 10 - 15 seconds after the shooting and shows an empty window, which is what we would expect if Adams and Styles had already taken off.
So, I reckon they were at the head of the stairs on the fourth floor no later than 20 seconds after the shooting and they ran all the way to the first floor.
Now let's think about the shooter.
Let's imagine it is Oswald and that he makes his way downstairs after the shooting (not that there is a shred of evidence that this actually happened).
According to Brennan, in "Eyewitness To History", the shooter was still at the SN window after the limo had reached the underpass. This delay receives support from Hank Norman, a few feet below the shooter, who heard the shells hitting the floor but didn't hear the sound of heavy Oxford work shoes on the wooden floor just above his head. Because the shooter was just stood there, not moving.
In this scenario, it would be impossible for Oswald to reach the second floor lunchroom
before Adams and Styles passed by.
Even if the shooter left his position the instant he finished shooting, and was running, he still wouldn't have made it to the second floor before Adams.
Also, Dorothy Garner's statements make it clear Adams descended the back stairs a couple of minutes BEFORE Baker and Truly came up the same stairs. This means Oswald would have to make it down the stairs BEFORE Adams reached them and I just can't see a scenario where that happens without ignoring lots of witness evidence and physical evidence such as the Dillard pic.
That said, I've no doubt some really unlikely yet not impossible scenario can be created to make it so Truly and Baker didn't hear the two women clattering along a wooden floor in 3 inch high heels a few feet away.
If anyone can do it, you can Comrade.