Calvert City, KY – A 15-year-old girl who collapsed during volleyball practice in Calvert City apparently had a natural death. Marshall County Deputy Coroner Barry Taylor says autopsy findings in the death of Courtney Koehler showed no evidence of trauma. However, the results aren't complete. Sheriff's department officials say Koehler was at practice Tuesday afternoon in Calvert City when she was stricken and was taken by ambulance to a hospital where she was pronounced dead. Funeral arrangements are forthcoming.