Herb Kent appears on "Chicago Tonight" in February 2009.

Herb Kent was the longest-running DJ in radio history and graced the Chicago airwaves for more than 70 years. He died Saturday after his final radio broadcast.

Don Cornelius

Chicago native and visionary creator of Soul Train, Don Cornelius, is dead of an apparent suicide. We talk with his close friend and legendary Chicago radio personality, Herb Kent, about the Cornelius legacy.