There has to be at least one shot fired from behind the JFK limo as it went down Elm st to account for the very obvious forward motion of JCs right shoulder and his counter clockwise rotation of his body which is apparent beginning at Z225.
If that’s not also the same shot that just went thhu JFKs back (presuming Knotts lab results are accurate, ) then the shot hitting JC still had to be.from behind. So it’s a simple matter to work out from what angle and height that allows a shot from behind the limo to go past or over the right shoulder of JFK.
Projecting the exit / entrance wounds thru JC backwards, the angle suggests a high window also such as the SW 6th floor window of TSBD. That window has more side view of the limo so theoretically may allow a trajectory path into JCs back that clears past JFKs right shoulder perhaps , passing by the side of JFKs right arm?
Not sure , however if the tree is more of an obstacle for the SW window angle perspective at the Z225 shot.
If the tree is too much an obstacle at level of the 6th floor TSBD SW then maybe the TSBD rooftop would clear it but then the angle is steeper and not sure that trajectory would line up correctly with JCs entry/exit wounds.
If none of the options work and the Knotts lab result cannot line up the SBT , Then I’m at a complete loss to explain JCs very noticeable turn of his right shoulder, and then clutching his hat as though from an involuntary nervous system reaction to his hand and wrist being hit also.
Has there been any other peer review of Knotts lab “science” analysis to determine if they may have made an error?