Solitary Dog Sculptor I

Police lead a group of black school children to jail after their arrest for protesting against racial discrimination near city hall in Birmingham, Ala. on May 4, 1963. (Bill Hudson/Associated Press) 

Rev. Ralph Abernathy, left, and Martin Luther King, Jr. walk through a corridor of the city jail in Birmingham, Ala., where they were held for several hours following conviction on charges of parading without a permit. They posted bond of $2,500. (Associated Press) 

Police and firefighters gather near a fire that razed several houses owned by black residents in Birmingham, Ala., on May 12, 1963, one block from a black motel which was bombed and the same distance from a church where civil rights demonstrations started. (Associated Press) 

Firefighters use their water hose against civil rights demonstrators in Birmingham, Ala. on July 15, 1963. (Bill Hudson/Associated Press) 

Emergency workers and others stand around a large crater from a bomb which killed four black girls in the Sixteenth Street Baptist Church in Birmingham, Ala. on Sept. 15, 1963. The windows of the building across the street in the background were also blown out. (Associated Press) 

A memorial plaque at the Sixteenth Street Baptist Church in Birmingham, Ala. for Denise McNair, Cynthia Wesley, Addie Mae Collins and Carole Robertson, the four girls killed in a bombing at the church in 1963. (The Birmingham News via Associated Press) 

Civil rights leader Dr. Martin Luther King Jr. displays pictures of three civil rights workers, Michael Schwerner, James Chaney, and Andrew Goodman who were slain in Mississippi the summer before at a news conference in New York on Dec. 4., 1964. He commended the FBI for its arrests in Mississippi in connection with the slayings. As the burgeoning civil rights movement gathered force in the 1960s, demonstrators were brutalized and killed, sometimes at the hands of law officers. Many slayings remain unsolved. But in some cases where local authorities failed to go after the attackers or all-white juries refused to convict, the federal government moved in with civil rights charges. (Associated Press) 

Dr. Martin Luther King Jr., center left with arms raised, marches along Constitution Avenue with other civil rights protestors carrying placards, from the Washington Monument to the Lincoln Memorial during the March on Washington on Aug. 28, 1963. (Associated Press) 

American president John F. Kennedy in the White House with leaders of the civil rights March on Washington (left to right) Whitney Young, Dr Martin Luther King (1929 - 1968), Rabbi Joachim Prinz, A. Philip Randolph, President Kennedy, Walter Reuther (1907 - 1970) and Roy Wilkins. Behind Reuther is Vice-President Lyndon Johnson. (Three Lions/Getty Images) 

Civil rights demonstrators gather at the Washington Monument grounds before noon, before marching to the Lincoln Memorial, seen in the far background at right, where the March on Washington for Jobs and Freedom will end with a speech by Rev. Martin Luther King Jr., now known as the "I Have A Dream" speech. (Associated Press) 

Portrait of American civil rights campaigner Martin Luther King Jr. (1929 - 1968). His iconic "I Have a Dream" is being remembered as a significant event in the civil rights movement. (Reg Lancaster/Express/Getty Images) #

At top, civil rights protestors march down Constitution Avenue carrying placards during the March on Washington on Aug. 28, 1963; and at bottom, people rally at the Lincoln Memorial in Washington to commemorate the 50th anniversary of the 1963 march Saturday, Aug. 24, 2013. Dr. Martin Luther King Jr. delivered his "I Have a Dream" speech during the March on Washington on Aug. 28, 1963. (Associated Press) 

Civil Rights leaders pose in the Lincoln Memorial during the March on Washington for Jobs and Freedom, Washington DC, August 28, 1963. Pictured are, standing from left, director of the National Catholic Conference for Interracial Justice Matthew Ahmann, Rabbi Joachim Prinz (1902 - 1988), Student Nonviolent Coordinating Committee (SNCC) leader John Lewis, Protestant minister Eugene Carson Blake (1906 - 1985), Congress of Racial Equality (CORE) leader Floyd McKissick (1922 - 1991), and labor union leader Walter Reuther (1907 - 1970); sitting from left, National Urban League executive director Whitney Young (1921 - 1971), unidentified, labor union leader A Philip Randolph (1889 - 1979), Dr. Reverend Martin Luther King Jr. (1929 - 1968), and National Association for the Advancement of Colored People (NAACP) leader Roy Wilkins (1901 - 1981). The march and rally provided the setting for the Dr. King iconic 'I Have a Dream' speech. (PhotoQuest/Getty Images) 

This aerial view shows crowds at the Lincoln Memorial in Washington during Martin Luther King Jr.'s "I Have A Dream" speech on Aug. 28, 1963. (Associated Press) 

The Rev. Dr. Martin Luther King Jr., head of the Southern Christian Leadership Conference, speaks to thousands during his "I Have a Dream" speech in front of the Lincoln Memorial for the March on Washington for Jobs and Freedom in Washington on Aug. 28, 1963. Actor-singer Sammy Davis Jr. is at bottom right. (Associated Press) 

The statue of Martin Luther King Jr. in Washington, DC, as thousands of people gather to commemorate the 50th anniversary of The March on Washington. The March on Washington is best remembered for King's stirring vision of a United States free of inequality and prejudice, telecast live to a nation undergoing a phenomenal decade of soul-searching, crisis and change. (Jewel Samad/AFP/Getty Images)