“Same exact head pasted onto two different photos.”
Not only that, the lighting/shadow angles are different between his chin/face and behind his body. If the angles were the same there would be no shadow under his chin or on his neck on his left side.
I remember the weekend after the assassination, less than 36 hours after it happened, the St. Louis Post-Dispatch had an entire separate multipage section on Lee Oswald.
The only way they could have done that is if they already had it fabricated and ready to roll and they sent it to the local newspapers.