How does forensic science help resolve questions about the JFK assassination? With the help of a group of scientists and researchers with access to the evidence in the case, Investigating History looks at new information that examines which theories are believable, and which are not. Specifically, the experts looked at the acoustic evidence from the radio of one of the motorcycle policemen in the motorcade and the number of shots that were fired; at the reliability of autopsy X-rays of JFK's skull; at theinvestigation that concluded that Oswald was the lone assassin; at the new evidentiary support for the magic bullet theory; and more.