Five months after four-year-old Gus Lamont vanished from his family's remote sheep station near Yunta in outback South Australia, the investigation has taken a serious new turn. South Australian Police Commissioner Grant Stevens has confirmed that two family members are no longer cooperating directly with investigators, now communicating only through their legal representatives.
On Wednesday, Commissioner Stevens told ABC Radio Adelaide that "members" of the family were "not cooperating" with police. "As far as I'm aware, it's status quo, from the most recent reports, we are still working with Gus's mum and dad and there are other members of the family who are no longer cooperating," he said.
Following Stevens' comments, an SA Police spokesperson confirmed "that two family members are only communicating [with police] via their legal representatives."
Blonde-haired Gus Lamont was last seen playing outside his home on his family's sheep station, Oak Park Station, near Yunta, in the Australian Outback on September 27. He was reportedly last seen outside by his grandmother around 5:00 pm, when she says she saw him playing on a mound of dirt. At 5:30 pm she went outside to call him in, only to find him missing. The family told police they searched for three hours before calling police.
His disappearance sparked one of the largest land and air searches in South Australia's history. The search zone expanded to 706 square kilometres, mobilising 80 Australian Defence Force personnel, unmanned aerial vehicles, mounted police units and aviation support. Authorities processed over 150 Crime Stoppers leads regarding the missing child, yet no individuals have been arrested or charged in connection with Gus's disappearance.
On 5 February 2026, SAPOL declared the disappearance a major crime, with a resident of the sheep station known to Lamont identified as a suspect. Police ruled out Lamont's parents as suspects, and said the timeline of events given by the suspect was inconsistent with the timelines given by others.
"The other two investigation options are focused on Gus being abducted from Oak Park Station or whether someone known to him was involved in his disappearance and suspected death," Detective Superintendent Darren Fielke said. Investigators found no evidence to suggest the child was abducted. "There is no evidence, physical or otherwise, to suggest that Gus has merely wandered off," Fielke said, adding that police "don't believe, now, that Gus is alive".
Detective Superintendent Fielke described Oak Park Station as uniquely isolated: it is 45 kilometres inland, accessible only by two dirt roads, with locked gates and no foreign tracks detected. Police have discounted neighbours, workers, known child sex offenders and vehicles in the area.
The day after the major crime declaration, Gus's grandparents, Josie and Shannon Murray, issued a statement saying the family had "cooperated fully with the investigation". One of Gus's grandparents, Josie Murray, is facing non-related firearm charges, which were laid during a recent search of Oak Park Station.
Investigators searched the homestead on January 14 and 15, seizing items including a vehicle, a motorcycle and electronic devices. "All of these items are now subject to forensic testing," Detective Superintendent Fielke said. After extensive searches, imagery captured by an aircraft and a drone was given to an AI company, which produced high-definition pictures showing every sheep, goat, kangaroo, wedge-tailed eagle, wallaroo and animal carcass on the property and one human riding a motorcycle.
Last week, Gus's heartbroken parents released a statement through SA Police pleading for anyone who knows anything about his disappearance to come forward. "We are united in our grief, and we are united in our search for answers about what happened to our little boy, Gus, who means everything to us. Our lives have been shattered, and every moment without him is unbearable," Josh and Jess said.
Commissioner Stevens said "Gus Lamont is one of the top priorities for South Australia Police" and that "the resources that are necessary will be kept on the task force until such time as the assessments are that would be a waste of those resources." He said police would definitely return to Oak Park Station. "I can't say when, I can't say what the reasons will be, that's entirely up to the task force. But the work is ongoing," he said.
The refusal of two family members to cooperate directly with police creates an obvious legal and investigative tension. In any criminal investigation, witnesses and persons of interest have the right to legal representation and need not answer police questions beyond a formal interview. But the public withdrawal of cooperation, in a case where police have explicitly ruled out all other explanations, will inevitably raise questions about what those family members know. No charges have been laid. The presumption of innocence remains, and no court has found any wrongdoing by anyone connected to this case.
The case presents a genuinely difficult set of circumstances for investigators. South Australian law gives individuals strong protections against self-incrimination, and those protections exist for good reason. At the same time, the parents of a missing, likely deceased child have a profound interest in the truth being established and justice being served. Those two things need not be in conflict, but in practice, they are. Crime Stoppers SA continues to accept information from the public on 1800 333 000.
What is clear is that Stevens reiterated that police "have all but ruled out Gus having wandered off". "There has not been one single piece of evidence that we have located during that searching exercise, the most extensive search I think arguably in the history of South Australia, that has given us any indication that he did wander off," he said. Five months on, Gus's parents are still waiting for answers. Whatever the legal complexities ahead, that fact demands resolution.