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A Cook County police investigation was halted Monday after the key evidence found in Old Edgebrook forest preserve turned out to be fake.
A visitor to the Indian Road Forest Preserve discovered a jar of what appeared to be human fingers and a tongue Sunday afternoon and turned it in to the Cook County Sheriff's office, according to the Chicago Tribune.
The Cook County Medical Examiner's Office found the items to be "non-biological" and a spokesman called it a hoax.
Officials believe it may have been a part of geocaching game, which uses GPS to hide and find items, sort of a digital version of hide and seek.