CHICAGO — A mass shooting that started with a brawl among two groups of young people left two killed and seven wounded late Thursday, blocks from the Magnificent Mile, according to Chicago police, who say they have one person in custody. An additional victim had suffered burns, possibly from being injured on the nearby CTA Red Line subway, according to a witness and a Chicago Fire Dept. spokesman. The shooting happened about 10:40 p.m. in the 800 block of North State Street outside the Chicago Avenue subway station and a McDonald’s at 10 E. Chicago Ave. The gunfire during a fight outside the f…
