Please cite your source for this information. I live in the Chicago area and there has been no mention of it here. Credible sources please.
This was the same neighborhood that sheltered a number of the 1993 WTC bombing conspirators. Omar Abdul Rahman's mosque was there, IIRC.
Your guess is as good as mine why these things were not given much coverage in the media after the first week. For one thing, newscrews were otherwise occupied on 9/11. For another, just look at the furor that resulted when a few scenes of celebrations overseas were shown. It just didn't "suit" certain people to have the truth shown. That doesn't mean these local events did not happen.