Here are Mr Truly and Officer Baker talking to i.a. Mr Ochus Campbell after their return downstairs---------------------

Now! The electrical panels in the background tell us that we are near the rear of the first floor. Officer Baker and then Mr Truly direct attention to the northwest corner, which is where the rear stairway is. It seems a fair surmise that he and Officer Baker are describing their movements after entering the building.
If so, then this is of potentially great significance. Contrary to the impression Officer Baker gives in his WC testimony, he does not leave the building immediately upon descending. Here he is with Mr Truly,
talking over what has happened.
Remember--------------Officer Baker will later this day give an affidavit in which he describes an encounter with a man caught walking away from the rear stairway on the third or fourth floor. Presumably the gentlemen here present in this footage are being told that Officer Baker and Mr Truly did not encounter anything untoward either on their way upstairs or on the roof. Only an employee a few floors up.
One thing is certain: they are NOT being told of any lunchroom encounter on the second floor. Because NOTHING OF THE SORT is going to be reflected in Officer Baker's affidavit account.
If the lunchroom incident really happened, then it is hard to see how Officer Baker can leave this conversation with Mr Truly and these gentlemen under an erroneous impression as to where the incident actually happened. He will either hear Mr Truly mention the lunchroom on the second floor, or Mr Truly will correct HIM when he speaks of an encounter several floors up. This neutralizes the usual Lunchroom Gullible argument explaining away the Baker affidavit ("Baker was new to the building etc.") because such fails to factor in the fact that he and Mr Truly had time together to
review their movements for the benefit of others.
No. What probably happens is this: Mr Truly does not challenge the FACT of an encounter with an 'employee' by the rear stairway several floors up. But he knows the 'employee' was no real employee. He, Mr Truly, is in deep doodoo, because he vouched for this fake 'employee'. He desperately needs a real employee coming down the stairway shortly after the shooting.
Is he going to ask Mr Jack Dougherty to pretend to police he unaccountably returned to work upstairs just around the time of the shooting and came downstairs after hearing a shot? Was Mr Dougherty in fact downstairs the whole time? Was he one of the two WHITE men seen by Officer Baker near the rear of the first floor just after the assassination?