Ragarding the Christian Science article on the secret service guy:
Why did the car lurch forward? Would he have been thrown backwards causing the rifle barrel to rise? Was he really that clumsy? All these statements are conclusionary and do not address what really happened........ first shot, Hickey responded by trying to fire back .... using his Secret Service-issued rifle. But because he was inexperienced with the weapon and the car lurched forward, ..... the shot went awry and accidentally hit Kennedy, ....
Also, the repeated references to Oswald indicate that this story may be a distraction from what really happened, or perhaps a cover for this Hickey guy.
And since the entire US government is involved in lying about the event, folks will have to keep on investigating.