The deaths of these men , together with many numerous racial and working-class injustices , prompted Martin Luther King Jr. to join a citywide march on March 18 to honor these men , support the Memphis sanitation strike , and address the human rights violations that led to their deaths . The march ended with police action , but another was scheduled . King was assassinated the evening before the second march
King was assassinated
Assassination of Martin Luther King Jr.
Death of Echol Cole and Robert Walker