Oh geez indeed. You are not interested in the *actual topic* of this thread, but came rushing to the defense of Turner. Why is that?
The topic got addressed when it was noted that:
1.) The shell Penn gave to the FBI wasn't fired from Oswald's rifle
2.) It was made by SMI and not by WCC
3.) The mystery man only "resembled" Oswald from the front. He didn't look like Oswald in profile.
With no other evidence, there is no good reason to assume that it could have been Oswald in the first place.