The life of Martin Luther King Jr.
The Rev. Martin Luther King Jr., is seen in this undated file photo. Forty years after his assassination on April 4, 1968, after the deaths of his wife and others who knew the man and what he stood for, some say King's fate, like that of many a historical figure, is to be frozen in a moment in time, the full complexity of the man and his message obscured.
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Church members greet King and his wife, Coretta, right, in December 1964 as they arrive in Oslo, Norway, where he would accept the Nobel Peace Prize. Coretta Scott King died in 2006.