Mourners fill St. Luke's Church of God in Christ during a funeral for Ronnie Chambers, 33, a victim of gun violence, in Chicago February 4, 2013. Shirley Chambers of Chicago had four children - three boys and a girl. Now they're all gone. Her son, Ronnie Chambers, was the last of the single mother's children - all victims of gun violence in Chicago over a period of 18 years. REUTERS/John Gress (UNITED STATES - Tags: CRIME LAW)