Deanna Sue Sonny Willener, 29, was found dead along the Allegheny River in Allegany, New York, on August 17, 1989. Her body was in an advanced state of decomposition; investigators determined she died from a gunshot wound to the head and her death was ruled a homicide. At the time she was a resident of Akron, Ohio.

The last known contact with Deanna was July 31, 1989, when she refilled a prescription at a pharmacy in her hometown. She was described as about 5 feet 5 inches tall, 120 pounds, with blonde or brown hair, blue eyes and several tattoos. Family members said she had struggled with substance abuse and that she frequently traveled with truck drivers, a detail that expanded the geographic scope of the investigation.

No suspects or arrests have been publicly identified and the case remains unsolved. Anyone who knew Deanna, her travels, or has information about her movements in late July and August 1989 is asked to come forward.