[4] He remained unidentified until February 2019, when the DNA Doe Project announced they had made a tentative identification, but his name was withheld until June 14, 2022.

Analysis of his hair found no conclusive traces of opiates, making it unlikely that he had a long-term opioid addiction; however, this does not exclude the possibility that he was intoxicated or that he took hallucinogenic drugs before his death.

Other items found with the body were cigarette butts, a Budweiser disposable butane lighter with the caption "Proud to be Your Bud" printed on it, a tube of Carmex lip balm, and a black Aquatech watch.

The second reconstruction released in 2014 by the FBI was considered by official agencies to be the most accurate to date, depicting a 20-year-old youth with collar length, dark feathery hair, and high cheek bones.

The man, who was wearing similar clothing as found with John Clinton Doe, was seen running and stumbling in Turtle Creek, visibly intoxicated and distraught.

Dubbed "River Guy" by local investigators, he was reported by witnesses to have fallen in the water two or three times, trying to climb up the embankment and yelling at bystanders, telling them to get away from him.

Contrary to the FBI approximation of JCD, the 1994 police artist facial composite of "River Guy" shows him as having a light beard.

However, this hypothesis was challenged by the later forensic estimations based on body decomposition rates that JCD may have died later than originally determined, as late as May, 1995.

In 2010, the distinctive goat pendant was traced by the Rock County Sheriff's detective working the case to a Janesville area craftsman.

Active in the local metal scene, the man claimed to have made the pendant as well as sold or given similar items to a dozen people.

[7] Isotopic analysis of the bones conducted in 2014 with the help of Smithsonian Institution scientists[8] showed that the young man was from or had spent a significant amount of time in the Midwestern area, around the Great Lakes, which includes the states of Wisconsin, Illinois, Minnesota and Michigan.