Gus Lamont search uncovers no new evidence, police say ‘we won’t give up’

An SA Police officer at Oak Park Station.

SA Police’s Superintendent Darren Fielke provided an update at Oak Park Station. (ABC News: Guido Salazar)

A renewed search for missing four-year-old boy Gus Lamont has failed to uncover additional evidence.

Speaking to reporters for the first time at Oak Park Station, near Yunta, the head of SA Police’s Major Crime division Detective Superintendent Darren Fielke said one of Gus’s grandparents remained a suspect in the police investigation into the boy’s disappearance.

Gus’s grandparents, Josie and Shannon Murray, have previously released a statement saying the family had “cooperated fully with the investigation and want nothing more than to find Gus and reunite him with his mum and dad”.

Gus Lamont

Four-year-old Gus Lamont was reported missing in September. (Supplied: SA Police)

SA Police have identified more than 500 people who were “in and around” Oak Park Station when Gus was reported missing on September 27.

“Taskforce members have been meticulously working through the list of those people and making individual contact with every one of those people,” Detective Superintendent Fielke said.

But Superintendent Fielke said there was still “no evidence to suggest that Gus has been abducted”.

“All of the people that we have contacted so far have been discounted as being involved in any way in Gus’s disappearance,” he said.

“There’s not many people left on that list.”

Farm buildings and a house in a brown landscape with low hills taken from a drone

Oak Park Station, near Yunta, is where Gus Lamont was reported missing in 2025. (ABC News: Guido Salazar)

Police said forensic examination of items seized from the property in January had also failed to yield further clues.

“No evidence has been located as a result of that testing that provides any further lines of enquiry that might assist us,” he said.

“One of the grandparents of Gus remains a suspect in this investigation, although at this time I’m not prepared to elaborate any further in relation to that person.

“At this time no other suspects or persons of interest have been identified in this investigation.”

An SA Police officer at Oak Park Station.

Superintendent Fielke said police remained convinced Gus had not been abducted. (ABC News: Guido Salazar)

Seventeen SA Police workers were involved in this latest search on Oak Park Station — the 11th search since Gus went missing.

Police have received hundreds of phone calls, emails and letters from the public in relation to their investigation.

Superintendent Fielke said police had received more than 500 calls to Crime Stoppers, more than 60 emails and letters in relation to the case, which he said were “all being followed up”.

He said police used the opportunity of recent rainfall to search more than 30 kilometres of waterways and creek beds, as well as bores and wells, but did not find any new evidence.

Farm buildings and a house in a brown landscape with low hills taken from a drone

An overhead view of the station this week. (ABC News: Guido Salazar)

They have said further aerial searches will be conducted in the wake of recent rain in the region at a distance of 15 kilometres from the homestead, which was one of the reasons why police returned to the site.

“Task Force Horizon members are in constant contact with Gus’s parents. They regularly speak and they are regularly provided with updates,” Superintendent Fielke said.

“They’re still struggling as you can imagine. They are riding a pretty emotional rollercoaster.”

CRE: https://www.abc.net.au/news/2026-05-28/police-say-gus-lamont-search-uncovers-no-new-evidence/106731686