You did not stand at that window, so we know you are not telling the truth. That window is blocked by plexiglass and you can only stand at the window next to it, but you can see Oswald had a clear shot. Nice try, though.
You are wrong. You should be more careful before calling another freeper a liar.
The book depository was open for many years before they hung a window behind plexiglass. I visited there when the museum first opened. Visitors could walk right over to the spot where Oswald supposedly stood.
BTW -people who call others liars are always suspect in my book. You may apologize any time.
Ladyjane is correct about the window. If there is plexiglass today it wasn’t there when I leaned out the window. In the past, that window was always open and anyone could walk up to it and lean out because they kept it open halfway. It has a wide ledge obstructing the view until past the window, signal light and street sign. A shooter would have had to have been leaning way out onto the ledge and in full view of everyone.