In the law firmsCorboy & Demetrio P.C. partner Thomas A. Demetrio will participate in a City Club of Chicago panel, “Concussions in the NFL: Whose Bell Was Really Rung?” on Monday, Sept. 12 at Maggiano’s Banquets, 111 W. Grand Ave.Demetrio will join speakers Lester E. Munson Jr., ESPN legal analyst, and Chris Nowinski, executive director of the Concussion Legacy Foundation.Demetrio and C&D attorney William Gibbs currently represent the Estates of Dave Duerson and Forrest Blue along with many other …