Police reveal witness cooperation changes in Gus Lamont case
SA Police continue searches at Oak Park Station after 4-year-old Gus Lamont went missing; a relative has withdrawn cooperation.
South Australian Police (SAPOL) have confirmed a shift in witness cooperation in the ongoing investigation into the disappearance of four-year-old Gus Lamont, who was last seen on September 27, 2025, at Oak Park Station, a remote sheep station located approximately 40 kilometers south of Yunta. A relative of Gus, who resides on the property, has now withdrawn their cooperation with authorities, SAPOL revealed.
Superintendent Darren Fielke, Officer in Charge of SAPOL’s Major Crime Investigation Branch, stated during a press conference that this individual is now considered a suspect. "The person who has withdrawn their cooperation is now considered a suspect in the disappearance of Gus", Fielke said. He also noted that the investigation has revealed "a number of inconsistencies and discrepancies" in information provided by Gus’s relatives.
Recent Developments in the Search
The announcement follows the conclusion of the most recent search efforts at Oak Park Station and surrounding properties. The search spanned numerous structures, including an outhouse where fresh cement had been laid, and a water tank on a neighboring property owned by Gus’s family. According to a SAPOL spokesperson, the search was conducted using Polair and a cadaver dog brought in from interstate to assist in locating human remains.
"Unfortunately, no evidence was located during the intensive searches", the spokesperson stated. Despite these outcomes, SAPOL indicated that Task Force Horizon detectives have not ruled out returning to the property as the investigation progresses. More than 95 square kilometers of land have been searched in connection with the case.
Parents Continue to Assist Investigation
Gus’s parents, Jessica Murray and Joshua Lamont, are not suspects in the case and continue to assist police. SAPOL Commissioner Grant Stevens confirmed their cooperation, while separate developments raised further questions about other family members. Gus’s grandparents have hired criminal lawyers as the investigation intensifies.
Earlier Arrest at Oak Park Station
During a prior investigation at the station, a 75-year-old individual was arrested on firearm offenses. However, Detective Inspector Andrew Macrae clarified in a statement that these charges were unrelated to Gus’s disappearance or a previous incident involving media at the property in October 2025.
Investigation Ongoing Amidst Forensic Analysis
As the search for answers continues, forensic testing is being conducted on several items seized from the property last month, including electronic devices, a vehicle, and a motorcycle. Criminologist Xanthe Weston has suggested that the case is far from being resolved. Speaking to Woman’s Day, she remarked, "We’re a long way from anyone being held to account for any aspect of Gus’ disappearance."
Dr. Weston also noted that the suspect identified by police may be facing mounting pressure following Superintendent Fielke’s detailed press conference. "If somebody in the family knows something, they may well feel compelled to come forward", she said.
The case, now classified as a major crime, remains under active investigation by Task Force Horizon detectives. Updates are expected as more evidence is gathered and analyzed. No arrests directly related to Gus’s disappearance have been made at this time.
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