Second Gun

Robert Kennedy, about to make his charge at the Presidency, was gunned down in a kitchen of a Los Angeles hotel during the California Primary in 1968. Sirhan Sirhan is arrested and the eyewitness testimony is irrefutable. The bullets and gun match. It's an open and shut case! But is it? The autopsy raised questions yet uanswered. Was it conspiracy? Did two people, acting independently shoot RFK at the once? Who was the guard behind Kennedy? Why were key witnesses never interviewed?