BENTON — A 36-year-old Chicago man has been indicted in federal court on charges he conspired to distribute crack cocaine and heroin in Southern Illinois.

David T. Walls, Jr., a/k/a “Gun,” has been charged by indictment with conspiracy to distribute crack cocaine and heroin between 2012 and October 2014, in Williamson County.

Walls was arrested in northern Illinois on March 26, 2015, and made his initial appearance in federal court in Benton on April 21, 2015. He is being held with bond pending an April 27, 2015, bond hearing.

The crack cocaine and heroin offense carries a penalty of up to 30 years in federal prison, to be followed by 6 years’ supervised release, and a fine of $2,000,000.

The ongoing investigation is being conducted by the Southern Illinois Enforcement Group. The Drug Enforcement Administration and Williamson County State’s Attorney’s Office assisted in the investigation.

The case is assigned to Assistant United States Attorney Amanda A. Robertson for prosecution.