Police have identified a suspect in the disappearance of four-year-old Gus Lamont in South Australia's remote outback. Gus was last seen playing outside his home on a sheep station near Yunta on 27 September. His grandmother found him missing after leaving him alone for about half an hour. This triggered one of the largest land and air searches in the state's history, covering around 470 square kilometers — nearly twice the size of Edinburgh. Detective Superintendent Darren Fielke said, "As a result of these inconsistencies, and investigations into them, a person who resides at Oak Park station has withdrawn their support for the police and is no longer cooperating with us. I do want to stress, however, that Gus' parents are not suspects in his disappearance." Police ruled out abduction due to the property's remote location and found no evidence that Gus wandered off on his own. In January, investigators searched the property, seizing a vehicle, motorcycle, and electronic items. The original investigation considered three possibilities: Gus walked off, was abducted, or was involved with someone he knew. "We'll continue to thoroughly and meticulously investigate the disappearance of Gus until we get an outcome," said Fielke. "We're all focused and determined to locate Gus and return him to his parents. Nothing is off the table as we work towards that outcome."