OKLAHOMA CITY - New developments in the case against the parents of three children who died in an RV fire last year.

News 9 has learned the couple is no longer required to wear their ankle monitors, which tracked their every move.

Stephanie Dunham and her husband Christopher face drug and child neglect charges in the deaths of their children. Four-year-old Christopher Jr., three-year-old Crystal and one-year-old Kaylee were left alone and locked inside the family's RV when it caught fire.

Prosecutors say they disagree with removed the Dunhams ankle monitors and believe the couple is a flight risk. The Dunhams are scheduled to go on trial in May.