Charleston police said a death investigation is underway after an inmate crew picking up trash found a body Tuesday afternoon on Greenbrier Street. Lt. Tony Hazelett with the Charleston Police Department said police are not sure if it is a homicide. The body will go to the medical examiner’s office to determine a cause of death. It was discovered on the side of Greenbrier Street before Airport Hill and was covered by a blanket. The investigation is continuing.