Drug charges related to a March traffic stop were dropped against Chicago rapper Twista on Tuesday (May 24), after another individual involved pled guilty to a Class B misdemeanor count for possession of marijuana. 43-year-old Johnnie A. Euell claimed full ownership of the substance recovered, and confirmed that he had in fact been the one behind the wheel of the rapper’s Rolls Royce when it was pulled over for following too close to a truck on March 24. The Porter County sheriff’s office also revealed that associates Michael A. Moore, 43, and Darrin J. Woody, 26 were also charged. Twista, revealed to authorities as Carl Terrell Mitchell, 43, had been…