You've gotta be kidding. The "50 made members" came from a Chicago Crime Commission Report issued in 1990.

They never bothered to do another one after that.

The "news report" is the result of a direct conversation with the FBI. It's the Chicago Tribune. It's a fairly reputable publication. I'm not sure what else you would want. Maybe I'll get John DiFronzo on the phone and you can ask him.