It's quite obvious that when Mr Oswald told Captain Fritz that he "went outside to watch the Presidential parade" this was
coded language for "stayed inside the second-floor lunchroom". Mr Oswald was taking a risk here, as there will always be literal-minded fools out there willing to interpret words like "outside", "parade" and "vestibule" in their superficial dictionary sense.
Captain Fritz, being privy to Mr Oswald's secret code system, was worried that some activist citizen would get access to the code and reveal the true meaning of Mr Oswald's claim. So he saw to it that Mr Oswald's claim was buried.
Thankfully, however, the revelation of Agent Hosty's notes finally allows us to confirm that Mr Oswald did indeed relay to Captain Fritz through a coded message that he had stayed inside the second-floor lunchroom for the P. parade.
We're making progress, friends!
