*I haven't seen anything to dispute that the info seen in one image is found within the other.
*I haven't seen anything to dispute that the picture was taken right as Kennedy was being shot.
If both things are true, it is bound to raise questions.
A dispute that I did see, involves an idea that a bottle caused a reflection of light, perhaps including potentially misleading image(s), to create the information that is recorded on the picture. But OTOH, I haven't seen anything readily identifiable as a bottle in any version.
Haven't seen everything on the subject, though, so maybe someone has a convincing way to dismiss the information. (This thing was before my time, and I've previously been somewhat uninterested in the JFK hit, admittedly, but the picture has caused me to become extremely interested. So I'm open to hear anything.)