British mother-of-two Katie Walker vanished from Sydney’s eastern suburbs more than eight weeks ago.
Her family and friends are challenging what they say is the police’s working theory that she died by suicide.
Early reports misidentified the 46-year-old as a former Married at First Sight (MAFS) Australia producer. Once the error emerged, coverage of her case faded.
Now, a citizen-led investigation has brought renewed attention to the unanswered questions surrounding her disappearance.
Here’s what we know.
Background
Walker, 46, is a British-born jewellery maker and mother-of-two.
She returned to Sydney in February after spending several years living in the U.S. state of Arizona.
Since returning to Australia, Walker had been staying in Sydney’s eastern suburbs and was known to visit Double Bay, Bondi Junction, and Bondi Beach.
Disappearance
Walker was last spoken to by phone on Friday 22 May.
Her family says CCTV captured her in Tamarama at 1.12pm the following day. She was wearing a black jacket, jeans and high heels, and carrying a small red handbag and a black bag.
Her phone later connected to a tower near Bondi Beach at about 7.40pm. Her family says no further CCTV footage has been identified, leaving an unexplained gap of more than six hours.
Police initially placed Walker’s last known movements at Bondi Beach, but later identified Double Bay.
They have not confirmed whether she was seen at either location or whether her movements were determined through phone data.
Nearly two weeks passed before NSW Police issued its first public appeal on 4 June. A second appeal followed on 11 June.
Why now?
Initial reports incorrectly identified Walker as a former MAFS producer.
Your contribution ensures The Daily Aus can continue doing the work you love.
I want to give $10 monthly to help TDA keep doing the news.
Your details:
At least one of the original articles was deleted, and when the connection proved incorrect, coverage of her disappearance faded.
Social media creator Joshua Fox, best known for his work on the MAFS Funny podcast, has now launched what he describes as a citizen-led investigation into Walker’s disappearance.
Fox said: “I live where Katie was last seen, I walk these streets daily and when I realised she was still missing, and read the time of day she went missing, I just couldn’t comprehend how that was possible.”
“Since my content started rolling out, so many people who have met Katie recently and also at various stages of her life have reached out, all offering fresh information that is helping piece together her final days.”
Family and friends
Walker’s family says police suggested she may have died by suicide near Mackenzies Bay.
They reject the theory, citing a lack of evidence and questioning how it could have happened unnoticed along the busy Bondi to Coogee coastal walk on a Saturday afternoon.
NSW Police has not publicly confirmed suicide as its leading theory.
Walker’s friend Justine Rose told Fox: “There’s too many puzzling circumstances, something is missing from this story.”
Walker had also been arranging to sell jewellery left in the U.S. and was expecting money from the sales.
Her friend Elizabeth Silk exchanged messages with her about the arrangements two days before she disappeared.
While this does not establish what happened, Walker’s friends believe it is among the circumstances investigators should consider.
The family have since hired a private investigator in Sydney.
Police
The Daily Aus asked NSW Police whether suicide remains its leading theory and whether detectives are investigating other possible explanations.
Police did not directly address those questions, but confirmed the investigation remains ongoing.
Anyone with information about Katie Walker’s whereabouts or final movements is urged to contact Crime Stoppers on 1800 333 000.
