When he was killed in 1968, he was planning a march of striking Memphis sanitation workers
[DOC] [TLE] Sanitation Workers Strike Memphis 1968 - APWU Iowa [PAR] The next day, two black sanitation workers were crushed to death by a 
malfunctioning compactor in an accident attributed to standard ... strike was 
illegal, and he announced that he would not negotiate unless ... City Hall and an 
impromptu march  the largest yet  along.