(DUQUOIN,, IL) — Police in Du Quoin are investigating the death of a Vergennes woman who was found dead in the restroom at Hardee’s on South Washington Street early Saturday morning. Police told WSIL-TV investigators reviewed the restaurant’s video surveillance recording and don’t believe 29-year-old Kaileigh Ralph died as a result of foul play. Police want to review the toxicology report as the investigation in Ralph’s death continues. Those results can take weeks.