If this was just shortly after the Heller in the Cellar how could it settle down so fast? This is how it was:
So, how could it go from wild pandemonium to total control so incredibly fast?
Well, the pandemonium was pure theater, and it did not involve Jack Ruby, who was upstairs at the time. They brought him down just to insert him into the current scene. And of course, no one was afraid of him because at no time did he engage in a struggle with anybody. Jack Ruby adored the Dallas Police, and he would never have resisted them, in any way, shape, or form. Do you really think Jack Ruby tried to shoot Detective James Leavelle, or, as an alternative theory, do you think Detective James Leavelle is a lying son of a bitch? I lean towards the latter.