The Rev. Martin Luther King Jr. said equality was not just about race — it was also about poverty. Dr. King was in Memphis advocating for the poor when he was killed 50 years ago. Today we talk to four people who have taken up Dr. King's fight for equality. | Want to support 1A? Give to your local public radio station at donate.npr.org/1A and subscribe to our podcast. Have questions? Email the show at 1a@wamu.org or find us on Twitter @1a.