A rural Defiance man has been charged with a sexual offense involving a juvenile, after his arrest last week.The Defiance County Sheriff’s office conducted the investigation, charging 67 year old William Shock of rural Defiance with Gross Sexual Imposition.The case allegedly involves a victim under the age of 13.William Shock was held at CCNO, and had an appearance in Defiance Municipal Court.The Defiance County Prosecutor’s office is reviewing the case, with Defiance County Children Services assisting.