MADISON COUNTY, Ill. (First Alert 4) – A third suspect has been charged in a shooting last week in Alton, Illinois, which left a 13-year-old girl critically injured. Madison County, Illinois, prosecutors have charged 24-year-old Keith A. Sanders with attempted first-degree murder, contributing to the delinquency of a minor and aggravated battery with a firearm. The charges were filed Tuesday and sealed by the court until Sanders was arrested Friday afternoon by Alton Police.