Mothers who lost children to violence were part of a hearing Monday to determine why it takes so long to solve murders in Illinois. Lawmakers gathered in Chicago to hear testimony from families and experts. Illinois is ranked the worst in the nation when it comes to solving homicides. “We have this backlog of DNA evidence that could potentially identify 750 murderers in the Chicagoland area,” Sen. Patricia Van Pelt said. “This is something that shouldn't have happened. We shouldn't have this backlog.”