A woman kneels on the ground outside the University of Chicago Medicine's Comer Children's Hospital where a 8-year-old girl was taken after being killed in a shooting that wounded three others near the intersection of 47th street and Union Avenue dur CHICAGO - An 8-year-old girl shot in the back was among 10 people killed in gunfire over the Labor Day weekend in Chicago, police said Tuesday, marking the latest deadly holiday weekend in the nation’s third-largest city.More than 50 people were shot from Friday until just before midnight Tuesday during a year where violent crime has soared in Chicago and other big U.S.