There is a pattern among the majority of the people who heard one shot and a pause then heard 2 shots that were very close to each other. If you were going by the span length between 3 shots as bam......bam.bam then that pretty much takes the Carcano out of the picture and would take many other kinds of rifles out of the picture as well from one shooter. The AR15 or its M16 on fully auto would not work either. In the USMC , the 1st thing I realized after bursting off a few rounds on automatic at night with tracer rounds was that the M16 would just shoot the next round higher than the last round like you were just walking up the tree while firing . We know Hickey had an AR 15 but it was pretty doubtful that Hickey fired his AR15 that day. If there was a headshot from the right front then that shot was taken because at the time there did not seem to be a kill shot on JFK . I still feel like the throat shot was frontal through the windshield and did not transverse the neck because of the bullet being slowed down by going through the windshield before hitting JFK , plus there were the very small leaks in JFK.s face during the embalming. We might get a few more files after "Poppy" dies but I'm guessing that the remaining files have pretty much been "sanitized" by now. You never know ! There might be a file that slips by . I'm not sure we would believe the truth if it were told to us. November 22nd 1963 will probably never be solved to a full extent of what we think really happened . Nothing would surprise me after our last election for President !