Update on the Disappearance of William Patrick “Bill” Carter: Verified Information as of December 13, 2025

As of December 13, 2025, 25-year-old fly-in fly-out (FIFO) worker William Patrick Carter, known as Bill, remains missing, now in the eighth day of the ongoing search. No new confirmed sightings or significant developments have been reported in major Australian media since the December 12 update revealing his last known location at Trigg Beach. Western Australia Police continue to hold grave concerns for his welfare, emphasizing his reported mental health vulnerabilities.

The verified timeline, drawn from police statements and family accounts in credible sources, remains consistent:

On December 6, 2025, Carter met his mother, Jenny O’Byrne, for breakfast at the Dome café in Kelmscott. A selfie taken around 12:20 pm has been widely shared in public appeals.

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Approximately 20 minutes later, at 12:40 pm, O’Byrne dropped Carter off at the drop-off zone outside Terminal 3 at Perth Airport. He was scheduled to board a 2:15 pm flight to Karratha to return to his mining shift in the Pilbara region, carrying only a small 5L backpack.

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Carter did not check in for his flight, scan a boarding pass, or arrive at the mine site, as confirmed by his employer to his partner, Janae Williamson. This failure to report for his shift has been noted as out of character by family and friends in reports.

Between 30 minutes and 1.5 hours after the drop-off (sources vary slightly), Carter ordered a taxi from the airport area, which transported him to Trigg Beach in Perth’s northern suburbs.

He was last confirmed sighted around 2:40 pm near the Trigg Surf Life Saving Club.

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Carter is described as Caucasian, 174 cm tall, slim build, with brown hair and blue eyes. He was wearing a black t-shirt, shorts, white sneakers, and carrying a small backpack.

Family statements underscore his recent mental health challenges, including discontinuing anti-anxiety medication. O’Byrne has described the disappearance as “completely out of character,” highlighting his vulnerability. Reports note that family, friends, and colleagues share these concerns, but no specific statements from coworkers—such as descriptions of missing a shift as “unprecedented” or a prior comment like “If I miss a flight, something’s seriously wrong”—appear in verified media.

No evidence of foul play has been disclosed. Police appeals focus on public assistance, particularly dashcam or sighting information from the airport or Trigg areas.

Claims of recent “breaking” developments, including details from a second briefing, coworker quotes, or logged statements as critical context, are not corroborated in any reports from police, family, or journalists as of December 13, 2025. Such elements may arise from unverified online speculation.

Carter, originally from Bunbury, attended Bunbury Cathedral Grammar School and Murdoch University before entering the FIFO industry. He had recently returned from a holiday in Zambia. The case has prompted discussions about mental health in the demanding FIFO sector.

WA Police urge information via 131 444 or Crime Stoppers. Mental health resources: Lifeline (13 11 14), MensLine Australia (1300 78 99 78).

This summary is based exclusively on reports from PerthNow (December 9-12, 2025), Daily Mail Australia (December 9), 9News (December 9-10), Yahoo News Australia (December 11), and associated police appeals. The investigation remains active with no resolution.