It has been 40 years since Dr. Martin Luther King Jr. was assassinated in Memphis, Tenn., while standing on the balcony outside his room at the Lorraine Motel. King was there to support striking sanitation workers, African-American men who endured horrible working conditions for poverty wages. While King’s staff was opposed to him going, as they were scrambling to organize King’s new initiative, the Poor People’s Campaign, King himself knew that the sanitation workers were at the front lines of fighting poverty.