Hey Patrick, just to see if I'm correct re your theory. There were two devices in the limo which would give off sounds as if they were shots but they were more severe than they should have been. One actually wounded Connally and the second caused JFK to be in extreme pain. So, JFK could have accidently caused his own death as he was in the process of his faking his own death? And, the blood? If I'm not mistaken there were cannisters which JFK would have pressed (in pain) to spray something resembling blood which would have sprayed on Jackie and himself? On the outside on Jackie and within the clothes of JFK, himself? Am I correct on that?
Second device was activated violently in Zapruder frame 313, flew up between Jackie and JFK and hit JFK in his face and I believe he got some injuries from that device. It was hidden in a pouch given to Jackie and inside the pouch there was red liquid to act as blood, maybe a real blood. When exploded, the blast sprayed the liquid mostly upward and towards JFK torso.
If you set your mind that there was small explosion coming between JFK and Jackie, I am sure you will easily understand what I am writing. Go back to frames 310-320 and check. Try to forget everything you know about assassination and expect a blast from bellow. It is like if you would show this 10 frames to a person knowing nothing about it, I am sure many would tell you, it is a blast between them.
First device was activated in Zapruder Z223 frame and did not have red liquid.