I think it's impossible to tell, at least from the federal inmate locator. He's been reported "released" on that for a long time but I think that's just what happens when you go into WITSEC.

I believe it was reported he was likely to be released this year... somewhere, I would imagine, a long, long way from Chicago!

I know Cullotta and Jr. walk around out in the open, but I imagine he will stay hidden forever.

I think it's also part of the deal he cut that, like Culotta, you have to keep testifying in perpetuity whenever they need you.