ATLANTA — Ozell Sutton, a longtime civil rights activist who was associated with the Rev. Martin Luther King Jr., died at 90.

Sutton marched for equal rights alongside King in Selma, Ala., in 1965 and was present at the Memphis hotel where King was assassinated in 1968. In 2012, Sutton earned a Congressional Gold Medal as one of the first African-Americans to serve in the Marines. He was director of the Justice Department’s Community Relations Service until retiring in 2003.