MACOUPIN COUNTY, ILL (KTRS) Investigators with the Major Case Squad now say they believe foul play is involved in the disappearance of a Macoupin County woman.

The Major Case Squad reports it has spent 12 days investigating the disappearance of 37-year-old Denita Hedden, who was last seen January 25th, her birthday. That night, Hedden is believed to have gone to a St. Louis casino and returned to the Royal Lakes area later in the evening. Now, investigators say they believe foul play was involved, based on what they call a myriad of factors, though they wont release any other information right now. They also say they’ve identified a person of interest and have turned over information to the Macoupin County State’s attorney.

The squad is asking all property owners, farmers and residents to be aware of spotting anything unusual on their property and report it to investigators. Anyone with information is asked to call Crimestoppers at 877-371-TIPS or the Macoupin County Sheriff’s Office at 217-854-3135.