Hi all, just watched an interesting documentary on British TV alleging a secret service agent, George Hickey, in the car behind JFK accidentely shot him as he reached for his automatic rifle to return fire at Oswald - it explains the smell of gunpowder at ground level which many witnesses reported and also gives a plausible reason for the secret service to begin an initial cover up which just snowballed....there were also clear photos shown of Hickey with the weapon in his hand at the time-anybody else heard this theory?