There's no evidence that he "pulled his gun on him" or "tried to fire the gun". How many times are you going to repeat those myths?
I suggest you familiarize yourself with the concept of "probable cause".
So are you saying that it is a myth that McDonald actually said this (3 H 300):
Mr. MCDONALD. His right hand was on the pistol.
Mr. BALL. And which of your hands?
Mr. MCDONALD. My left hand, at this point.
Mr. BALL. And had he withdrawn the pistol-
Mr. MCDONALD. He was drawing it as I put my hand.
Mr. BALL. From his waist?
Mr. MCDONALD. Yes, sir.
....
Mr. Mr. MCDONALD. Yes, sir. When this hand-we went down into the seats.
Mr. BALL. When your left hand went into the seats, what happened?
Mr. MCDONALD. It felt like something had grazed across my hand. I felt
movement there. And that was the only movement I felt. And I heard a snap.
I didn?t know what it was at the time.
Mr. BALL. Was the pistol out of his waist at that time?
Mr. MCDONALD. Yes, sir.
Mr. BALL. Do you know any way it was pointed?
Mr. MCDONALD. Well, I believe the muzzle was toward me, because the sensation
came across this way. To make a movement like that, it would have to be
the cylinder or the hammer.
Mr. BALL. Across your left palm?
Mr. MCDONALD. Yes, sir. And my hand was directly over the pistol in this
manner. More or less the butt. But not on the butt.
? Because that is evidence on which one could easily conclude that Oswald pulled his gun on the arresting officer and pulled the trigger with the gun pointing at the officer. You may not believe it, but that does not make that evidence mythical. It exists.
Or perhaps you were suggesting that this was evidence of a mythed shot...