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

The reason we can be absolutely certain that the imagery of JFK and Jackie isn't real in the Altgens photo is that when when a person brings his fist to his throat, he takes his forearm with him. So, the only thing he could extend outward to the person next to him is his elbow. 

And that is what we see in the Z film. So, that is his flexed elbow jutting out, not his straight forearm. But, in the Altgens photo, it's his straight forearm. The black curved line below represents the curve of his shoulder and arm going down, and it has no connection with that long arm going across like a log. And I say like a log because it's so uniform and doesn't have any of the contour of a normal arm. This is really bad.