An Australian ex Police Detective basically has proved that the third and fatal shot that killed JFK , the one you see in the actual footage , was accidentally fired from one of the Secret Service agents in the car behind responding to the shots fired from Oswald , they had been up late the night before , so when Oswald opened up and one of the agents drew the rifle up he accidentally fired hitting JFK in the back of head , there was a cover up but not as portrayed, imagine what would have happened if it was released that the President of the United States was killed by one of his own Secret Service agents.
