MEMPHIS, Tenn. (AP) — Fifty years ago, the Rev. Martin Luther King Jr. was killed while standing on the balcony of the Lorraine Motel in Memphis, Tennessee. The civil rights leader's shocking murder on April 4, 1968, marked one of the most significant moments in U.S. history. The city's role in the civil rights movement and King's death has long made it a destination for anyone interested in King's legacy.