Where a municipal entity is prohibited by legitimate judicial order from revealing materials assembled as part of a grand jury investigation, the entity cannot be forced to reveal those materials via a Freedom of Information Act request as they are not being improperly withheld.The 1st District Appellate Court affirmed in part, reversed in part and remanded decisions by Cook County Circuit Judges Michael P. Toomin and Mary L. Mikva.David Koschman was assaulted and beaten to death in 2004 by Richard Vanecko in a public …