Knoxville Police Chief Dan Losada tells KNIA/KRLS news that shortly before 11:30pm Thursday evening a search warrant was issued at an apartment on Gebhardt Street in Knoxville after the Mid-Iowa Drug Task Force was informed of suspicious activity in the building. As a result four individuals were arrested on various drug charges. 27-year-old Joel Allen Followill is charged with possession of drug paraphernalia and possession of a schedule II controlled substance. 45-year-old Olen Aldridge is charged with possession of methamphetamine and possession of drug paraphernalia. 44-year-old Randy Charles Salsberry is charged with possession of drug paraphernalia, possession of a schedule II controleld substance and possession of methamphetamine. And 34-year-old Kimberly Kay Murphy is charged with possession of methamphetamine, possession of drug paraphernalia, possession of a schedule III controlled substance, possession of a schedule IV controlled substance and possession of marijuana. The Knoxville Police Department drug dog Knox lead to the recovery of evidence.