Since there is the LN criticism of the “out front” location for Oswald based on Oswald’s statement of “naturally if I work IN that building “ in response to the question : Were you in the building at the time “?
So I’m considering the idea that Oswald initially was in the front lobby looking thru the glass partition when Carolyn Arnold (looking back) saw him at approx 12:25, and that Oswald did not actually come out to stand on the steps until just a few seconds AFTER the shots were fired.
This might address the probability question of how Oswald could be next to and in FRONT of several persons yet he was apparently unnoticed or not remembered by such persons.
The psychological effect therefore might be the phenomenon of “missing the Gorilla in the midst of the basketball players” because of shock effect of shots fired causing focus of mind to flight or fight response.
Mr Oswald behind the front door at the time of the actual shots is indeed possible, though "Then went
outside to watch P. Parade" suggests that is not what he actually claimed in custody. It would also, of course, leave the impossible shadow down Mr Lovelady in Wiegman unexplained..........
I suspect that Ms Arnold did indeed spot Mr Oswald behind the glass front door shortly before the motorcade's arrival----------and that he was keeping an eye on things so he could nip outside at the last moment (he hated small talk and would have found standing around on the steps for several minutes with other employees uncongenial). If----------as I am doubly surmising----------he nipped outside at the last minute and then left the steps immediately after the shots rang out to follow Mr Shelley down on to the street, it's unsurprising that he would go generally unnoticed.
The enclosed, raised-steps entranceway was in the front part of the building. As such it was 'in the building', albeit not INSIDE it. (The Warren Gullibles always pretend the reporter asked 'Were you INSIDE the building at the time?') To leave the building fully, one had to descend the steps and hit the sidewalk.
