Today marks the 49th anniversary of the assassination of Martin Luther King, Jr., one of the most important figures in the Civil Rights Movement. King's life was tragically cut short on April 4, 1968 while he was standing on the balcony of the Lorraine Motel in Memphis, Tennessee. He was only 39. His life and work is still an inspiration to thousands and his legacy is particularly important to remember in light of modern times when America is again experiencing heightened racial tensions. In remembering King's tragic death, we also remember his influential life. Here are five facts you should know about the killing of the civil rights leader.