After leaving boxing , Robinson became a civil rights activist and follower of Martin Luther King , Jr . He participated in the 1963 March on Washington and heard King 's noted speech , '' I Have a Dream . '' Robinson attended the funerals held for three civil rights workers killed in 1964 in Mississippi . He participated in organizing Resurrection City , a camp set up in 1968 at the Washington Mall to draw attention to the plight of poor people of color in the United States
three civil rights workers killed
Murders of Chaney, Goodman, and Schwerner
Ray Robinson (activist)