(Chicago Tribune file image)

(Chicago Tribune file image)

(WGN-AM) - An autopsy today on badly decomposed human remains found along the Des Plaines River revealed little about who the person was and how she or he died.

The Will County coroner's office said DNA testing that may determine the body's identity will take at least two weeks.

There has been speculation the body could be Stacy Peterson, who disappeared from her Bolingbrook home in October 2007, or Lisa Stebic, the Plainfield mother who went missing in April of that year.

While the autopsy indicated that the person has been dead several months or more, it "did not reveal any significant information in reference to the identity, race or sex" of the person, the coroner's office said.

"Positive identification may hinge on forensic DNA analysis" through the state police crime lab, Coroner Patrick K. O'Neil said in a statement.

The remains consisted of a rib cage, spinal column and partial left and right femur bones. The remains were found with shreds of blue jeans containing a small amount of U.S. currency, according to the coroner's office.

The head, arms and parts of the body below the knee were not found with the remains examined today, the coroner's office said. Authorities continue to search for them, officials said.

Investigators said there is no timetable for making a determination on who the person was, and nothing new has came to light that would link the remains to either of the two missing women.

Earlier, state police said the remains were "severely deteriorated" and "mainly skeletal," cautioning that DNA testing may be needed for positive identification.

Illinois state police dive crews were in the river east of the spot where the remains were found, looking for anything that might be connected to Wednesday's grisly discovery.

(The Chicago Tribune contributed to this report)

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