50 years later, remembering the death of Martin Luther King, Jr. and one of the great speeches of the 20th century

It is the speech Robert F. Kennedy delivered in Indianapolis following the assassination of Martin Luther King, Jr. You can read the full text here. 

The background: 

Robert F. Kennedy‘s speech on the assassination of Martin Luther King Jr. was given on April 4, 1968, in Indianapolis, Indiana. Kennedy, the United States senator from New York, was campaigning to earn the 1968 Democratic presidential nomination when he learned that King had been assassinated in Memphis, Tennessee. Earlier that day Kennedy had spoken at the University of Notre Dame in South Bend and at Ball State University in Muncie, Indiana.  Before boarding a plane to attend campaign rallies in Indianapolis, Kennedy learned that King had been shot. When he arrived, Kennedy was informed that King had died. Despite fears of riots and concerns for his safety, Kennedy went ahead with plans to attend a rally at 17th and Broadway in the heart of Indianapolis’s African-American ghetto. That evening Kennedy addressed the crowd, many of whom had not heard about King’s assassination. Instead of the rousing campaign speech they expected, Kennedy offered brief, impassioned remarks for peace that is considered to be one of the great public addresses of the modern era.