This isn't all about you, it's what evidence that Hoover had, and the following list even at that stage was already absolutely devastating for your client.
"Devastating". LOL.
Oswald's rifle.
Unproven speculation.
Oswald bought the rifle with an alias.
Unproven speculation.
Oswald left immediately.
"Devastating evidence". LOL.
Oswald desperately caught a bus while it was stopped in the middle of the street.
"Desperately". LOL. "Mytton" the mindreader. LOL.
Oswald panicked when the bus wasn't moving and caught a cab
"Panicked". LOL. "Mytton" the mindreader. LOL.
Oswald got out way past his rooming house.
"Devastating evidence". LOL.
Oswald killed a cop in front of eyewitnesses.
Oswald tried to kill more cops.
Oswald was arrested with a revolver.
Oswald told lie after lie while being interrogated.
Unproven speculation.
The only thing that's devastated here is what you think passes for evidence.