SA Hill referenced an "echo" to the sound. Perhaps the "echo" is actually 2 different almost simultaneous shots striking home. The sudden almost simultaneous sounds of 2 strikes + 2 shots being fired would be very confusing to the ears.
Perhaps the "echo" is actually 2 different almost simultaneous shots striking home. That's possible, Royell... But of course you realize that two shots that were very closely spaced would eliminate LBJ's "Special Committee's theory.... because a carcano cannot be fired that rapidly.