EAST ST. LOUIS - The investigation into the gruesome murder this past weekend of five people in East St. Louis continues.Authorities in East St. Louis identified five family members killed in what investigators described as a targeted mass shooting as prosecutors filed murder and other felony charges against a 16-year-old male and are moving forward with a juvenile case against a 15-year-old female co-defendant.The St. Clair County Coroner’s Office identified the dead as Quentin L. Thompso...