chicago group black pastors boycott chicago mayor rahm emanuel annual martin luther king breakfast friday handle police kill one pastor attend event interrupt protest chant escort handful religious leaders join protesters block one entrance hyatt hotel breakfast hold chant demand emanuel step hundreds chicago african-american leaders attend breakfast start 1980s city first black mayor harold washington event honor civil right leader king boycott opposition harold washington martin luther king jr. boycott stand cause stand protest achievement make sit nothing endorse go say bishop edgar mullins pastor grace family worship center church one boycotters local media show footage rev matthew ross interrupt breakfast chant 16 shots cover-up reference 2014 fatal shoot laquan mcdonald security guard escort conference room police kill mostly men color lead protest around unite state past year half wave protest police kill chicago mostly young black men force emanuel fire police chief accept federal probe police department city also reverse previous policy release video footage police kill thursday officials make public image surveillance cameras show police kill cedric chatman 17 january 2013. lawyers family say video contradict police statements chatman carjack suspect dark object point alderman anthony beale city ninth ward among black leaders attend breakfast friday say honor king legacy make protest possible either part problem part solution choose part solution ... golden opportunity us put real change city say chicago black pastors shun mayor 's annual king breakfast