Oswald never fired a single shot. Witnesses have him down stairs getting a coke. The shots came from surrounding buildings and from the grassy knoll with what I believe was the kill shot fired from the storm drain by Jack Lawrence after Greer got the signal from the umbrella welding agent instructing him to stop. The Zapruder tape has been altered and they did a shitty job of it.
Yep...imagine you have just blown the president's head off in broad daylight with hundreds of witnesses....and you merrily stroll into the lunchroom (actually he had to run the length of the sixth floor and down several flights to be found by the cop relaxing with a coke in the lunchroom)...you make no effort to escape...you leisurely walk out of the TBD and stand at a bus stop, but then take a cab home....then somehow you magically kill a cop in broad daylight, then go to the theater, where you are apprehended. Then a couple days later you are murdered in the most heavily guarded building in the world, by a gunman with shaded ties who magically walks right up to you and he shoots you on national TV.
Only an idiot would believe the government's version of events.