Jack Tatums statement of observing the shooter (whom he thought was Oswald), shooting 3 shots, then hesitating, then walking around the squad car to shoot a final 4th shot, which was a fatal head shot.
In my opinion , shooting a person already laying in the ground from close range , inflicting a head wound qualifies the phrase “ shooting point blank”.
Now maybe Tatum is making up this story, (because it’s not corroborated by Markam who seems to remember only 3 shots), but it could also be true, because Calloway claims hearing FIVE shots and there were supposedly( if we can believe the finding shells evidence) FOUR spent shells found at the Tippet scene.
So the “evidence” (if true) is
1. 4 spent shells found allegedly matched to the type used by the revolver that is said to be recovered from Oswald’s hand in the the Texas theater.
2. Jack Tatums account of the event which had Oswald (or similar looking person) delivering a final 4th shot at Tippit laying on the ground.
3. The autopsy wounds indicating verification of a fatal head wound from the type bullet projectile fired from the type revolver taken from Oswald’s hand in the Texas theater.
So what I’m saying is : IF the above are true then the only viable option for a CT is to go with a theory that some other person whom resembled Oswald must have done the shooting BECAUSE of Jack Tatums account of the overly dramatic ( and unnecessary ) 4th fatal shot to the head, which is NOT the action of a paranoid Oswald, but instead, the action of some other person with other intentions, one of which may be setting up Oswald, because of the shooters similar appearance per the eyewitness.
Then MAYBE there is some plausibility of an imposter leading the police to the the theater, but it’s still a problematic thing getting the revolver into Oswald’s hand without resorting to claiming DOD office McDonald was a liar.
If Walt Cakebread has some other alternative then please suggest what it may be.