The civil rights leader Martin Luther KIng (C) waves to supporters 28 August 1963 on the Mall in Washington DC (Washington Monument in background) during the "March on Washington". King said the march was "the greatest demonstration of freedom in the history of the United States." Martin Luther King was assassinated on 04 April 1968 in Memphis, Tennessee. James Earl Ray confessed to shooting King and was sentenced to 99 years in prison. King's killing sent shock waves through American society at the time, and is still regarded as a landmark event in recent US history. AFP PHOTO / AFP PHOTO / -

El 4 de abril de 1968, hace 50 años, el tiro de un francotirador acababa con la vida del pastor Martin Luther King Jr., en Memphis, Tennessee, EE. UU. Pero el legado del autor del célebre discurso Yo tengo un sueño, adalid de los derechos civiles de este país, sigue más vivo que nunca, por ejemplo, en movimientos como el Black Lives Matter  (Las Vidas Negras Importan), que luchan contra la violencia institucional, en especial la policial.