Associated Press

OKLAHOMA CITY -- The family of a woman found dead in an Oklahoma state park nearly three years ago has announced a reward for information leading to an arrest in the case.

Jim and Stacey Rilee of Morris County, N.J., say a $30,000 reward is offered for information about the death of their daughter -- 23-year-old Jody Rilee-Wilson of Wister.

Rilee-Wilson's body was found May 8, 2009, near Heavener Runestone State Park in southeastern Oklahoma. She was last heard from on May 5 when she spoke to her parents by phone.

An autopsy failed to determine a cause of death but said the woman died "under suspicious circumstances." Her vehicle was found in June 2009 in Henryetta -- about 100 miles from her home.

Rilee-Wilson was a New Jersey native who moved to Oklahoma in 2007.