Jim Leavelle's forearm going over to bury his hand in Oswald's pants is FAKE, and here are the reasons why I know it's fake. The upper extremity consists of an upper arm and a forearm, and the only joint between the two is the elbow. The elbow is the only place that an angular change in direction can take place. But, in this case, the angular change takes place a little below the shoulder- as if his elbow was located there. But, his elbow was NOT located there. That is much too high. Look at it here:
The elbow is the only place where the angular change in direction can take place. But, in the Jackson photo, it's like Leavelle's arm is mostly forearm, that starts a little below his shoulder.
Do you see where the arrow is? That is where the angular change in direction is taking place, but it's impossible because it's too high. That's not where his elbow was, and the change of direction can only come from the elbow.
Now, anyone who disagrees with that needs to shut the fuck up and get their camera out and duplicate the above image. I'm not interested in your lip-flapping. I want to see it. I want you to demonstrate it- with a camera. Let's see you make a photo that looks like that.