Morehouse alumni include notable African-Americans such as: Martin Luther King Jr., theologian Howard Thurman, filmmaker Spike Lee, filmmaker Robert G. Christie (a.k.a. Bobby Garcia), actor Samuel L. Jackson, civil rights leader Julian Bond, United States Senator Raphael Warnock, businessman and former 2012 Republican presidential candidate Herman Cain, Secretary of Homeland Security in 2013 Jeh Johnson, University president and health care executive Albert W. Dent, NFL Referee Jerome Boger, celebrity physician Corey Hébert, U.S. Congressman Sanford D. Bishop, Gang Starr rapper Guru, Four-time 400 meter hurdles world record holder and twice Olympic gold medalist Edwin Moses, U.S. District Court Judge George J. Hazel, Lloyd McNeill, Jazz flutist, USPS Kwanza Stamp designer, the first recipient of Howard University's MFA Degree, former Bank of America Chairman Walter E. Massey, the first African-American mayor of Atlanta Maynard Jackson, Major League Baseball first baseman and 1969 World Series MVP Donn Clendenon, former Secretary of Health and Human Services Louis W. Sullivan, former United States Surgeon General David Satcher, entrepreneur and award-winning technologist Paul Q. Judge, musician PJ Morton, author Jared Andre Sawyer Jr., rap producer Metro Boomin, Sunday Best season 7 winner Geoffrey Golden, Montgomery County Alabama Circuit Court Judge Greg Griffin and the US Centers for Disease Control (CDC) scientist that attempted to stop the Tuskegee Syphilis Study, Bill Jenkins.