سالگرد ترور مارتين لوتر کينگ در آمريکا

Cherry blossom trees in full bloom surround the Martin Luther King, Jr. National Memorial in Washington, March 19, 2012. (Reuters)

Martin Luther King Jr. Center for Nonviolent Social Change security officer Kevin Baxter places a wreath at the crypts of Martin Luther King Jr., and his wife Coretta Scott King, in Atlanta, Georgia, January 16, 2012. (AP)

Martin Luther King III, center, the son of civil rights leader Martin Luther King Jr., at a wreath laying ceremony at the Martin Luther King, Jr. Memorial, in Washington, in observance of King's 83rd birthday anniversary, January 15, 2012. (AP)

Long-stemmed roses rest on the reflecting pool wall at the crypts of civil rights leader the Rev. Dr. Martin Luther King Jr., and his wife Coretta Scott King. (AP)

A brace of plow mules drawing the farm wagon bearing the mahogany casket of Dr. Martin Luther King, Jr., along the funeral procession route in Atlanta, Georgia, April 9, 1968. (AP)

Dr. Martin Luther King Jr. during a speech in Eutaw, Alabama, June 1965. (AP)

Dr. Martin Luther King, Jr. and associates lead a procession behind the casket of Jimmy Lee Jackson during a funeral service at Marion, Alabama, March 1, 1965. (AP)

This 1968 photo released by the Shelby County Register's office on March 31, 2011 shows James Earl Ray being transported in Memphis, Tennessee. (REUTERS/Shelby County Register of Deeds)