Andrew can explain whatever it is he can explain, maybe how an unimpeded round struck JBC's leg but only went in an inch or whatever is the current thought.
Whether a first shot
could have missed is not the point. The evidence is very consistent that it
did not miss. This was implicitly accepted by the WC and their counsel so it is not an outrageous conclusion from the evidence, despite what SBTers would like to suggest.
As far as the first shot striking JBC in the thigh, I am not an expert so I can only say what appears from the evidence. The conclusion that the first shot struck JBC in the left thigh but not in the back or wrist is based on the following:
1. the trajectory through JFK's neck goes right to left and appears to pass just to left of JBC's midline
2. the bullet passed through at least 5 layers of clothing (jacket, lining shirt, doubled shirt in front), and struck the underside of JFK's tie on exiting. It also passed through 2 layers of skin and several inches of strap muscle. How much all that caused the bullet to slow is not really known. It is estimated based on some tests but those tests obviously did not duplicate the path exactly and used some assumptions about the stopping power of the above.
3. the bullet then likely tumbled end over end in travelling toward JBC.
4. the wound characteristics of the thigh wound fit a 6.5 mm missile striking at an angle butt-first and penetrating about an inch and a half to the femur. There was evidence that a fragment of lead was embedded in the femur at the end of the bullet path. All of this fits with the known characteristics of CE399.
5. the wound characteristics of the wrist wound fit an irregular shaped missile striking the radius with enough force to shatter it into several pieces but not destroy it. It also sent a spray of lead flakes into the wound. These characteristics led Dr. Gregory to say that it was likely caused by the same bullet that exited the chest but that it was not likely caused by CE399. Since the bullet struck but did not penetrate the radius, it is difficult to understand how much of the bullet would not have deflected away from the point of contact, although it is possible that a fragment could have gone through the wrist. The thin laceration of the skin on the palm side of the wrist could have been made by a bullet fragment or possibly a bone fragment.
6. the only evidence of fragments flying up from the rear compartment came on the second shot (Tague and Greer).
7. it is extremely difficult to conceive of CE399 passing through JFK, JBC's chest, taking out 10 cm of rib, smashing the radius, making a tiny exit laceration in the palm side of the wrist and then (with no apparent cause) deflecting left ward to the left thigh with enough energy to penetrate the thigh to a depth of about 1.5 inches.
8. JBC said he never felt the thigh wound and never felt pain from any of his wounds.