The Somerton man: Cold case: Is a Kiwi mum the key to solving 72-year-old mystery? 15 May, 2021 05:00 PM 9 minutes to read Wellington-born Rachel Egan may be the granddaughter of the "Somerton man", an unknown man whose body was found in mysterious circumstances on an Adelaide beach in 1948. Photo / Supplied Wellington-born Rachel Egan may be the granddaughter of the "Somerton man", an unknown man whose body was found in mysterious circumstances on an Adelaide beach in 1948. Photo / Supplied Sometime soon, the body of an unknown man who died in mysterious circumstances on an Adelaide beach more than 72 years ago will be exhumed and DNA extracted from his remains.