A few years ago I started to look at old Kennedy home videos and photos - I believe there are 2 JOHNS - Twins.. hence the name John-John. In the younger videos/photos you see one JOHN has a chipped tooth while in the same video you see one JOHN without the chipped tooth - they also had different color hair - one had lighter hair. If you look at one of the photos you have up - of John in his early 20's you can tell its not the Jr we have seen - the eyes are different/ears and teeth - there is also something different with the hands.