Since the first reports of Chicago police torture surfaced a quarter century ago the list has swelled to nearly 200 cases involving dozens of public employees—and still no one has been prosecuted. Now, with the results of a four-year, multimillion dollar investigation due any day, here’s a guide by staff reporter John Conroy to the key figures in the scandal. Some of them may look familiar.

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RICHARD BRZECZEK, police superintendent when Andrew Wilson was tortured, freely answered the special prosecutor’s questions. The rest of the officers listed here are African-Americans who in depositions have said they suspected torture but were not part of the circle that was inflicting it.

Richard Brzeczek

AP/Wide World Photos

Former superintendent Richard Brzeczek Former sergeant Doris Byrd Former detective Melvin Duncan Former detective William Lacey Former detective Bill Parker Former detective Walter Young

An archive of John Conroy’s reporting on the police torture scandal is available at chicagoreader.com/policetorture.