WARRENVILLE, S.C. (WRDW/WAGT) – The Aiken County Coroner’s Office has released the autopsy results of a man found dead on the front porch of a Warrenville home on Wednesday. Coroner Darryl Ables says the Friday autopsy of Joseph A. Keenan, Sr., 52, determined Keenan’s death was a homicide due to a gunshot wound to the body.