Bullshit. The Dallas P.D. was working with the SS on that day.
In addition it was the Dallas P.D. that allowed the assasin of the President of the United States to be assassinated.
The Dallas P.D. were a bunch of bumbling AHs.
It was on the directions of the Secret Service a lot of this came to pass.
Kennedy wanted the open car.
Today, due to modern designs, there are very few open windows in office buildings.
The Secret Service pulled their agents off the presidential limo because it was the end of the parade.
It would not have been the Dallas Police who would have known about Oswald’s background or considered him a threat. That one would have been the FBI.
You can easily blame the FBI or the Secret Service. Now the killing of Oswald? You are completely correct.