Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

This shows Jim Leavelle's left wrist, and there is no sign of any handcuff on it. 

There was no advantage to doing it anyway. Oswald could be shot either with or without it, right? So, it wasn't going to make him any safer. And, there was no issue of him trying to run away, was there? Therefore, the whole idea of it was just for show. It was just an exhibition, which the whole thing was.