I am just highlighting the absurdity of John's contrarian approach to this case by applying it to other situations. By his idiotic standard, no one actually saw Lincoln shot by Booth. They just heard a shot, immediately looked in that direction and saw Booth pointing a pistol at Lincoln's head. Thus, John would take issue with anyone characterizing that as seeing Booth shoot Lincoln. Implying that someone else could be the responsible party. He has made that absurd argument in the Tippit situation as well. It is very humorous to see him dance like a circus monkey at the absurdity of his own logic when applied outside his fantasy JFK narrative.