Re your post 22, I'm not disputing what you say about Foster being shot under the chin but anyone who had researched the matter wouldn't aim under the chin. What would likely happen woud be that you would blow off your face and destroy the frontal cortex of the brain, which leaves you a living, breathing vegetable (likely without sight, too). My nieces, who are in the medical field (nurses and respiratory specialists) tell me this; they see cases like this all the time.
They don't tell me this part but I know it: it's far better to put the gun in your mouth, aim downward, and destroy the reptilian brain which governs, among other things, breathing. Kill that part of the brain and folks, you be dead. Guaranteed.