This collage shows the long and un-round face of Jack Ruby on the right compared to the round face of James Bookhout on the left.
These are obviously not the same face. And, it is a matter of common sense and common occurrence that we distinguish between faces as these. Look at that very long forehead on the right. That is the forehead of the Jack Ruby, the real Jack Ruby. The guy on the left was FBI Agent James Bookhout. He masqueraded as Jack Ruby, but he did not shoot Oswald. There was no shooting in the garage. It was all a ruse. They shot Oswald later, and by they, I mean the Dallas Police. Who pulled the trigger on Oswald, I do not know.