TIME SPAN OF SHOTS
Witnesses at the assassination scene said that the shots were fired within a few seconds, with the general estimate being 5 to 6 seconds.[C3-365] That approximation was most probably based on the earlier publicized reports that the first shot struck the President in the neck, the second wounded the Governor and the third shattered the President’s head, with the time span from the neck to the head shots on the President being approximately 5 seconds. As previously indicated, the time span between the shot entering the back of the President’s neck and the bullet which shattered his skull was 4.8 to 5.6 seconds. If the second shot missed, then 4.8 to 5.6 seconds was the total time span of the shots. If either the first or third shots missed, then a minimum of 2.3 seconds (necessary to operate the rifle) must be added to the time span of the shots which hit, giving a minimum time of 7.1 to 7.9 seconds for the three shots. If more than 2.3 seconds elapsed between a shot that missed and one that hit, then the time span would be correspondingly increased.