Sounds like bull. Except to go to court, prison and the psychiatric hospital, it's doubtful that Gigante left Manhattan for the last 20 years of his life. I believe he was even caught on tape once complaining that he regretted the "crazy act" because he couldn't go anywhere or do anything.

Those guys had so much heat on them in the time after the Castellano hit the they would have had to gotten teleported from New York to Chicago to keep the feds from noticing.