An Anderson County man has been found guilty in federal court on drug and firearm charges. Court officials say 52-year-old Charles Edward Mason was convicted of being a felon in possession of a firearm, possession of meth with the intent to distribute, possessing and brandishing a firearm in furtherance of a drug crime and possessing a firearm in furtherance of drug trafficking. He is scheduled to be sentenced May 20, 2020. Court documents show Mason has a violent crime history, having previously plead guilty to two homicides, one in Knox County, Kentucky, in 1994 and the other in Anderson County, Tennessee, in 2010. Both of the men were Mason’s stepfathers.