This is from a forum in which someone questioned whether LHO was really shot in the garage. He points to things like the two horn honks, one when Oswald first came out and the other right before the shooter rushed in.
So, what do you make of that? The Dallas Police signalling Jack Ruby? How could they be signalling Ruby? If their response was to pounce on him, arrest him, charge him, prosecute him, etc. how could they be working together? Who "conspires" like that?
"OK, Jack. You rush in and shoot Oswald; then, we'll arrest you and see that you get the death penalty. What do you say?"
So, if they were signalling somebody, it could not have been Ruby. It means that I am right that the shooter wasn't Ruby.
And, there are a lot of comments, and most of them are supportive, such as this one: