FYI.... THOMAS LEMUEL "Lem" JOHNS has passed-on.
On 11-22-63 he was one of the Secret Service Agent's riding within Dealey
Plaza in an enclosed car behind then-Vice President LYNDON JOHNSON.
JOHNS stated to the HSCA that, "the first two [audible muzzle blasts and/or
mechanically suppress-fired bullet bow shock N-waves] sounded like they were
on the side of me towards the grassy knoll" [RIF 180-10074-10079].
JOHNS remembered hearing/could hear a total of 3 blasts and/or shockwaves
that sounded relatively evenly-spaced apart.