(BENTON, IL) — On July 14, 2015, James C. Leming, 54, and Dawn E. Unterfer, 45, both of Carbondale, IL, were sentenced for their involvement in a methamphetamine conspiracy, the United States Attorney for the Southern District of Illinois, Stephen R. Wigginton, announced Monday. Leming and Unterfer, who had previously pled guilty to the one-count indictment charging conspiracy to manufacture methamphetamine, were sentenced to 87 months and 78 months in federal prison, respectively. Both were also placed on 3 years’ supervised release and fined $300. The offense occurred between 2010 and January 2014, in Jackson, Williamson, Union, and Franklin Counties. Evidence at the plea and sentencing hearings established that Leming and Unterfer were involved with each other and others in the manufacture of methamphetamine. Both co-defendants purchased pseudoephedrine for others to use in the manufacture of methamphetamine. At the sentencing hearings, the district court found that Leming was responsible for the illegal possession of 229 grams of pseudoephedrine and that Unterfer was found responsible for the illegal possession of 253 grams of pseudoephedrine. Seven co-defendants have previously been sentenced for their involvement in the methamphetamine conspiracy. Three co-defendants have pled guilty and are awaiting sentencing. The ongoing investigation is being conducted by the Jackson County Sheriff’s Office, Murphysboro Police Department, Carbondale Police Department, Illinois State Police/Southern Illinois Drug Task Force, and Drug Enforcement Administration. The case is assigned to Assistant United States Attorney Amanda A. Robertson for prosecution.