Anatomy of the Second Floor Lunchroom Encounter

[LR Trotter]

Considering that eyewitness testimony places LeeHarveyOswald on the 2nd floor of the TSBD Building, in the lunchroom when encountered by DPD Officer MarrionLewisBaker, who was accompanied by Building Superintendent RoySansomTruly, at or just past 12:31pm,CST,on 11/22/'63,indicates that for LHO to not have been encountered there at that time, means that he had to be somewhere else. If he was somewhere else, then where? And, is there any reliable eyewitness testimony placing him there at that specific time?