• Don Cornelius (left) interviews Curtis Mayfield on the Chicago set of Soul Train.

Soul Train creator Don Cornelius died this morning of a gunshot wound, apparently self-inflicted, in his home in Encino, California. He was 75. If you’ve never read Jake Austen’s fine 2008 cover story on the early Chicago days of Soul Train, do yourself a favor and check it out. There’s also a jubilant hour-long documentary, Soul Train: The Hippest Trip in America, that was broadcast on VH1 last year and screened theatrically at the Gene Siskel Film Center in September, with Cornelius taking questions afterward.