Martin, according to the ITEK Corp. Film and Photographic Analysis of the assassination, the lateral angle of trajectory was 11.5? +/-1? right to left, relative to the midline of the limo. They measured Connally to be positioned 6.4" +/-2.2" inboard of Kennedy.
How does a bullet passing through Kennedy's back/neck and throat not end up hitting Connally?
I am not going to debate the ITEK conclusions with you, simply because determinations like these are at best speculative and can be made to measure to fit any theory. There are way too many different theories around about how Connally and Kennedy were positioned and, as far as I know, none of them were ever conclusively proven. I'd much rather discuss what we can see with our own eyes.
All I asked for is that somebody show me a straight line from the window to the limo below, in such a way that a bullet going through Kennedy does not end up in the area between to two jumpseats. So far, despite the fact that they can move the limo to any location in the center lane, nobody has been able to show that straight line.