Although it MAY be possible that JBC could be hit by a 2nd shot from the same SE window gunman, after JFK was hit in the throat /neck atZ195-210, that 2nd shot could NOT have been fired by an MC rifle at Z224-226, because its only 1.5 secs from Z195-Z205), as well as that JFK has not yet leaned leftward atZ224-226.
The reaction of JBC right shoulder rotating counterclockwise and moving forward virtually in sync with Z224-226 movement of JFK , does not allow enough time for JFK to lean leftward so as to clear the LOS for the SE 6th story window gunman to fire 1.5 sec later, hitting JBC at Z224-226.
Its not until a few seconds after Z224-226 and at that point when JBC has completed his counterclockwise shoulder turn that began at Z224-226 , and he has raised his right hand clinching his hat and he is turning in opposite rotation (clockwise) , attempting to look back at JFK. (This approx in the Z 275 -278 range)
So the way it looks to me, for Andrews scenario to work would require TWO gunman firing from 2 different angles in the following sequence:
1st shot :Z195 ( between Betzner 186 and Willis Z205) and Willis girl almost fully stopped running). This shot, fired by a gunman (#1)at SE window, hits JFK in the neck and exits his throat and goes somewhere not hitting anyone else. There is some kind of delayed nervous system response by JFK which happens at Z224-226
2nd shot: This shot fired by gunman (#2) from a different angle (SW window?) that has a clear LOS to JBC, unobstructed by JFK, takes a shot at about Z 224-226 that hits JBC in the right shoulder , causing the rotation of JBC. This shot is only 1.5 secs after the 1st shot fired by the 1st gunman at the SE window.
3rd shot at Z313 fired by either gunman , 5-6 seconds after 1st shot at Z195-Z205 or 2nd shot at Z224-226.
Problems :
A.The spacing of the 3 shots would be 1..2
..3
Which is opposite what 2/3rds witnesses heard as 1
2..3.
B. A bullet which passed thru JFKs neck and throat and then where did it go?
C. A solitary gunman 2nd independent shot to JBC is difficult to explain how JBC is being hit at Z224-226 , (because of the abruptly turning shoulder of JBC in sync with JFKs movement of arms and hands to throat ). JFK is still obstructing the SE gunmans LOS to JBC at Z225-226.
D. Presuming the notion that the gunman at SE window had approx 5 minutes to study Elm
St , the tree obstruction and light pole, then why would he choose to shoot in the Z 195-205 range thru branches of a tree even if the foliage was minimal?
E. The Z film does not appear to indicate that JFK is being hit at Z 195-205
F. If JFK 1st shot hit from Z210-220, then its even more improbable to be just 1 gunman using an MC rifle