Illinois ? An autopsy performed Thursday on a headless, armless skeleton found along the Des Plaines River yielded inconclusive results, leaving questions about whether the badly decomposed body was one of two women whose disappearances have drawn national media attention.

The skeletal remains were not enough to determine an identity, race or gender of the corpse, Will County Coroner Patrick O’Neil’s office said in a statement. An expedited DNA analysis by the Illinois State Police Forensic Crime Laboratory likely will take about two weeks, O’Neil said.

The coroner’s office also said the person had been dead “several months or more.”