Four-year-old Gus Lamont is presumed dead after vanishing from a South Australian station; a non-parent family member is now the focus of police investigation.

Four-year-old Gus Lamont remains missing after vanishing from Oak Park Station in outback South Australia on September 27, 2025. Police now believe he is deceased and have ruled out abduction or wandering, focusing instead on a non-parent family member living at the property as a suspect. Authorities have not named the individual or filed charges, but the public identification of a suspect signals strong investigative confidence. The mother, Jessica Murray, has relocated for safety, while her parents and the child’s father have cooperated with the investigation. Despite extensive searches and forensic efforts, Gus has not been found, and the case remains active.