New South Wales Police have confirmed that a body discovered in a disused livestock treatment tank in the Tweed Valley belongs to Yvonne Whear, a 73-year-old grandmother who had been missing for approximately eight months.

The remains were discovered at about 11:20 am on Monday, 5 October, by two trail-bike riders travelling along a track on private property near Kyogle Road in Terragon, approximately 20 kilometres south of Murwillumbah. The tank, known as a cattle dip, had previously been used to treat livestock for ticks and other parasites.

Police said the location was isolated and situated about 300 metres along an overgrown fire trail. Specialist officers and forensic investigators attended the scene to examine the area and gather evidence. Following identification of the body, investigators established a dedicated taskforce to investigate the circumstances surrounding Whear’s death.

Acting Superintendent Matt Zimmer confirmed that police were treating the death as a homicide. He said Whear’s family had been informed and was experiencing profound grief following the discovery.

Whear was last seen driving near Murwillumbah on 19 February 2026. Her disappearance prompted concern among relatives and people in the local community. The search intensified in September when her gold Ford Escape SUV was found in the Rous River near Dulguigan, less than 10 kilometres from her home. An independent search organisation located the vehicle using specialist equipment.

The discovery of the vehicle had already raised serious questions about what had happened during the months since she disappeared. The subsequent recovery and identification of her body have shifted the case into a homicide investigation.

Police are appealing for information from anyone who may have visited or travelled through the isolated property and surrounding area between 19 February and 5 October. Investigators are particularly interested in people who may have noticed unusual activity or who possess information that could help establish how Whear came to be at the location.

Authorities have said there is currently no evidence connecting her death to other unsolved murders or missing-person cases. Police have also stated that available information does not indicate a broader threat to the community.

Whear was a mother of three, grandmother of 10 and great-grandmother of one. Police have asked anyone with relevant information to come forward, emphasising the importance of helping the family obtain answers.

The investigation remains active. Police have not publicly identified a suspect or announced charges in connection with her death. The circumstances of the homicide have not yet been established, and investigators are continuing to gather evidence and examine possible leads.

This report reflects information published on 13 October 2026; the investigation is ongoing and further details may emerge as police enquiries continue.