Murder of Graeme Thorne

In June 1960, Bazil and Freda Thorne of Bondi, Sydney, won £100,000 in the Opera House Lottery, with their names and address published in local newspapers as was customary at the time. On the morning of 7 July 1960, five weeks after the win, their eight-year-old son Graeme Thorne disappeared while walking to the corner where a family friend usually collected him for school. Within an hour, a man with a foreign accent telephoned the Thorne household demanding £25,000 by 5:00 p.m. and threatening to "feed the boy to the sharks." Police, who had already arrived at the house, attempted to trace the calls, but the kidnapper hung up before providing full payment instructions.

The investigation that followed drew nationwide attention. Thorne's school case was found near Seaforth, and witnesses reported seeing a boy matching his description with two men and a woman near Pennant Hills. Other witnesses recalled an iridescent blue 1955 Ford Customline parked near the pickup point on the morning of the kidnapping. Police cross-checked more than 270,000 vehicle registrations to narrow down potential matches, interviewing owners including Stephen Bradley, who denied being in Bondi that day. On 16 August 1960, Graeme Thorne's body was found wrapped in a blanket on vacant land in Seaforth. Forensic analysis of the blanket, fibres, tree pollen, and soil mortar fragments—conducted with University of Sydney forensic scientists—narrowed the search to a specific type of house and location, eventually leading police to a property in Clontarf that had been rented by Bradley, a Hungarian immigrant who had since left Australia for London with his family.

Bradley was located when his ship, the SS Himalaya, docked in Colombo, Ceylon. He was extradited to Australia and, according to police, gave an oral and later signed confession describing how he had followed Thorne, lured him into a car, and driven him to his home in Clontarf before the boy died. At trial in the Central Criminal Court in Sydney beginning 20 March 1961, Bradley pleaded not guilty to murder but admitted kidnapping. He claimed the boy's death was accidental suffocation in the car, a claim forensic experts disputed through testing. After a nine-day trial, Bradley was convicted and sentenced to life imprisonment, the maximum penalty for murder in New South Wales at the time. His appeal was dismissed in May 1961.

The case is regarded as a milestone in Australian criminal investigation for its early and sophisticated use of forensic science, including botanical, entomological, and soil analysis. It also prompted changes to lottery-winner privacy practices and to Australian kidnapping laws. Bradley died in Goulburn prison of a heart attack in October 1968. Bazil Thorne died in 1978, and Freda Thorne died in 2012.