"Hey, hey, LBJ...How many boys did you kill today?"
So, why DID he order the limo completely cleaned...all clues vanished...immediately afterward?
BTW, enhanced digital renditions of the Zapruder film clearly show the DRIVER of the limo turned toward JFK with a shiny object in his hand pointed directly at Kennedy's head when the limo emerges from behind the sign. Immediately afterward was when Jackie opted to exit the limo completely, via the trunk. The other Secret Service guy--in the passenger side--was hunkered down on the floor mat...exactly OPPOSITE to the training protocol, which required him to be firing a weapon toward the sound of the shots!