Um, three spent shells found in the SN
And?------------- Explain why it is important.
Maybe this will help.
WC conclusion pages 110-111
It is possible that the assassin carried an
empty shell in the rifle and fired only two shots, with the witnesses
hearing multiple noises made by the same shot. Soon after the three
empty cartridges were found, officials at the scene decided that three
shots were fired, and that conclusion was widely circulated by the
press. The eyewitness testimony may be subconsciously colored by
the extensive publicity given the conclusion that three shots were fired.