June 1929.* A body is dumped into Lake Michigan; when it's fished out 3-4 weeks later, on July 10, the Bureau of Missing Persons has a John Doe on its hands. And so, Lt. Agatha Stewart and her sidekick Frank Benson are on the case. At the City Morgue, all the coroner can tell about the decomposed body is the approximate age, 50, and that the deceased might have had a bad heart. Outside, Lt. Stewart runs into Eliot Ness, who came down to do an I.D. on a Joe Fuselli. (not the Joe Fuselli from ""The Scarface Mob."") The morgue will keep the body for 10 days. July 20, in Potter's Field, the John Doe is buried in the rain; there are no mourners, only Lt. Stewart and reporter Walter Rimer attend. But then a clue-- a huge wreath is delivered by O'Banion florists; the delivery man doesn't know who ordered it, so Lt. Stewart goes to the flower shop. It had been owned by the notorious gangster Dion O'Banion (1892-1924), until he was rubbed out 5 years ago by Johnny Torrio. Now, the shop