The NSW Police Force is searching for a missing teenage boy with only a blackened jawbone to work from.  Investigators create a nationwide bulletin, seeking the dentist who extracted two teeth from the individual shortly before his death. A record or an X-ray of that operation holds the key to our lost boy’s identity and possibly his fate In this 3rd episode, Real Crime Investigative Journalist Adam Shand returns to Umina Beach to confirm the theory that the jawbone was carried in floodwaters from the Hawkesbury River to the coast in 2012. Another massive flood in NSW gives investigators a chance to model the early event and better understand the discovery site. And our forensic investigators reach out to colleagues across Australia for fresh thinking on how to unlock the mystery of the black bone. If you have information on this case please contact Crime Stoppers 1800 333 000 or your local police station.   For more episodes, download the LiSTNR app now and listen for free. See omnystudio.com/listener for privacy information.