It has been shown that Oswald purchased a revolver with the same description and serial no.
Bull. What’s actually been shown is that unscientific and biased handwriting “analysis” of a few letters on a copy of an order coupon purports that he filled out the coupon.
The bullets used to kill Tippit were the same kind of bullet
There were literally millions of .38 special bullets. These particular ones did not have sufficient characteristics to identify the weapon.
and the four .38 calibre shells found at the scene of his murder had firing pin marks that exactly matched the highly irregular profile of the gun's firing pin.
Too bad the evidence was so mishandled that you cannot demonstrate those particular shells were found at the crime scene or had anything to do with Tippit.
FBI ballistics officers noted that the bullets from Tippit and those known to have been fired by CE143 had the same class characteristics - five lands and five grooves twisting to the right.
All .38 bullets have 5 lands and grooves with a right twist.
This was not conclusive because the bullets were a tad smaller than the barrel and the bullet did not rifle properly. But the bullets recovered from Tippit did carry evidence of erosion resulting from barrel gases escaping through the space between the bullet and the barrel.
This was a very commonly done modification.
Here’s where the giant leap occurs:
So it was the gun used to kill Officer Tippit.
Sorry, no. That doesn’t just follow.
