There is another film that shows them from the other side.
I'll look for it.
That old lady and the old man seem oblivious to the pandemonium.
You would think that basic common curiosity would cause them to halt and at least look around.
These old fogies appear at 1:02 in the video...............................................
I guess your pal Oswald didn't get that memo since he got out of Dodge real fast without exercising any basic common curiosity to look around. Even after a cop pulled a gun on him in the lunch room, Old Lee was on his merry way in Mr. Magoo-like bliss to the movies.