Roland Martin says he 's resisted comparing the Florida shooting to the Emmett Till case . The Trayvon Martin case may be that catalyst that I and others have often said is long overdue . Montgomery Bus Boycott came on the heels of that killing , he says . Comment: A system that only responds to protests and outrage should change , Martin says .
Roland Martin says he 's resisted comparing the Florida shooting to the Emmett Till case . Montgomery Bus Boycott came on the heels of that killing , he says . Comment: A system that only responds to protests and outrage should change , Martin says .