3. He LIED about returning to the first floor to return to eating lunch, because he needed to account for missing minutes and wished to hide the fact that those minutes had been devoted to going up to the sixth floor to clean something up
Mr. Howard Brennan recalled seeing an Oldsmobile parked funny by the southeast corner of the Depository just before the motorcade. Just after the shots, he noticed it was gone. This struck him as most peculiar.
I suspect Plan A for Mr. Oswald was that he would dispose of his flag/paper sack by the mailboxes and then hop into the waiting Oldsmobile, to be driven away (for Red Bird Airport?). But something stopped him from getting in that car, and
induced him to return inside the building.
What might that something have been? I suspect it was on-the-spot information furnished to him by a panicked Mr. Shelley, fresh from his encounter with Ms. Gloria Calvery:
Kennedy has been hitThere was evidence deliberately left behind in the building designed to tie a false-flag provocation to a Castroite group (with Mr. Oswald knowingly setting himself up as one of their number). Now that the
provocation had been trumped by an actual
assassination, that evidence had to go. Mr. Oswald had NOT signed up for involvement in, or blame for involvement in, an assassination.