KENOSHA, Wis. (CBS 58) -- It's been almost 25 years since the body of a John Doe was found near railroad tracks in Pleasant Prairie.

The Kenosha County Medical Examiner is now turning to the Smithsonian for help.

John Doe was seen in August of 1993 by a man walking near railroad tracks just north of the Illinois stateline.

The body was already decomposing.

Smithsonian scientists will try to identify the man from his teeth.

The service is being provided to the county for free.