On November 22, 1963, Libby Gallant was in downtown Dallas, hoping to catch a glimpse of President John F. Kennedy. But instead of jumping for joy, she trembled with fear while she watched him die. Hours later, after several versions of the horrifying murder played out on TV, she realized that she had recorded more footage than anyone else. And as she fought her way through an immense panic attack, she decided to hide her home...