Consider: A bullet is fired at a downward angle; it hits Kennedy's body; without striking a bone it reverses course upward and exits the throat. Then it changes trajectory in mid-air, while hanging suspended for a second, then goes downward to enter Connally's back, smashes a rib, exits, deflects right 90 degrees, smashes a wrist, deflects left 120 degrees, and lodges in his thigh (DiEugenio 102).
Here is what Governor Connally said on the subject:
They talk about the "one-bullet" or "two-bullet theory, but as far as I'm concerned, there is no theory. There is my absolute knowledge, and Nellie's too, that one bullet caused the President's first wound, and an entirely separate shot struck me. No one will ever convince me otherwise. It's a certainty. I'll never change my mind (DiEugenio 101).
I hope you are watching Court TV right now. They just proved that one bullet could have gone through Kennedy and Connaly both and still ended up looking like the "magic bullet" did. There are no "90 degree turns" or any other fantasy involved. The key is the fact that Connaly was turning around to face Kennedy when he was hit. He was not facing forward. And the Mannlicher-Carcano bullet almost always tumbles after passing through soft tissue. Someone asked Connaly to take off his shirt so he could see the wound he had -- and he did! It was exactly the length of a Mannlicher-Carcano bullet entering sideways.