No...
The fact the authorities never followed-through to ask Jarman, Lovelady, or name the un-named cop and interrogate that cop, is the stronger evidence here and evidence of a cover-up you have failed to credibly answer
How do you interrogate and unnamed cop?
...You are in denial of the fact that the 1963 investigation should have been very enthusiastic to get someone to confirm they saw Oswald leave through the front door...Especially after being told to step aside and wait by a cop...
Who saw that happen?
But that's not what happened and every investigative authority that touched this did the opposite and buried it...This should have been explosive when Jarman told it in 1977 but the exact opposite happened and shortly after Lovelady dies...Hmmm...Conspiracy research would be really great if it wasn't for Conspiracy researchers...
What was there to bury? An unconfirmed hearsay rumor?
You're hand-waving Corbett and you are badly failing to answer the question of why Lovelady did not tell this to the FBI or Warren Commission in 1963?...The reason why Lovelady held this back in 1963 is because his partner Shelley led Oswald out the Loading Dock after Oswald was told to step aside and wait by a cop at the front door...
Who witnessed that?
This was expository of the conspiracy and evidenced Shelley's knowledge of who Oswald was and therefore exposed the conspiracy...]
How does Shelley knowing who Oswald was expose a conspiracy. You've got a few holes to fill there, Columbo.
It is also the reason why they with-held the name of the cop at the front door and never investigated Oswald's departure from the Depository...
Who named the cop that nobody saw stop Oswald?
Things you unaccountably have no curiosity over except for weak excuse-making...
Well, you've got me there. I have no interest in rumors based on third hand accounts of an event nobody witnesses.
For the Conspiracy community to ignore this is a crime against their own practice...
This is one time I will side with the "Conspiracy community".