(CENTRAL CITY, IL) — A 54-year-old Central City man was killed Saturday afternoon in a one-vehicle crash on Green Street Road. According to Marion County Coroner Troy Cannon, John W. Oettle was traveling westbound on Green Street Road approximately 100 yards east of Brick Hill Road just east of Central City. Witness reports indicate Oettle’s vehicle drifted across the centerline and across the eastbound lane before dropping off the south shoulder, striking a large tree and then coming to rest. Assistant Coroner Tina Spradlin pronounced Oettle dead at the scene just after 1 p.m. An autopsy is scheduled for Monday morning to determine whether a pre-existing or undiagnosed medical condition may have contributed to the crash. The Coroner’s Office was assisted at the scene by the Marion County Sheriff’s Office, Central City Police, Lifestar EMS, Centralia Fire Protection District, Marion County ESDA, and the Illinois State Police. The Sutherland/Garnier Funeral Home is assisting the family with arrangements.