I recall that. They mention it in these videos, and when I first saw it here (I hadn't noticed before, or thougth about it), it was like being hit straight in the face with a sledgehammer. I was like, "WTF!? Is he SHOOTING the president?!" Unfortunately, the video is too blurry to tell for certain, but yeah, it sure as hell looks like Jackie is trying to get the hell out of dodge, and then someone drags her back into the car.
Jim Garrison really is a hero. He may have failed to have that asshole Clay Shaw convicted, but at the very least he brought one of the ugliest moments in US history out squirming in the light, and exposed that there really was someone bigger behind this than a lone loonie like Lee Harvey Oswald.
That, I think for people today who study the JFK-assassination, will help them awaken to what is really happening in the world. In fact, I think it may have a greater effect today than it had back then. At least I hope so.