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Police suspected foul play but, for the next decade, Gabriel’s disappearance remained unsolved.
“They’d given up hope — [it had been] so long. They had resigned themselves to the fact that he’d gone missing and was never going to be located.”

Georgia discovered medical records that led to Gabriel, who is now deceased. Source: Supplied
Then, more than 20 years after his disappearance — just two weeks before he was due to be declared dead in a coronial inquest — Robinson made a discovery that would lead her straight to Gabriel.
“He had acquired a brain injury … a type of amnesia that [meant] he didn’t really know he had a family.”
No closure
In 1990, at the age of 16, Karen went to Coober Pedy — an opal mining town about 500km north of Port Augusta — to meet and reunite with other family members. This is the last time anyone is recorded to have seen her.
Neither Karen nor her body has ever been found.
Around 50,000 people go missing each year
“It could be the person has purposefully chosen to take themselves in a direction that their loved ones weren’t aware of,” Cameron told Insight.
Cameron says the most important issue police will ask about is whether there’s a concern for the welfare of the missing person.
Lost but found
The family called the police and listed her as missing.

Chris (left) and her sister Cornelia, who made international headlines in 2005 when she was found 10 months after going missing. Source: Supplied
Ten months later, in February 2005, she was found in Queensland and was going by another name.
However, this is something that police are currently seeking to do.
“And also, amazing to be able to tell his family that this is where he’s been all this time.”
‘Give her back to us’
“She said: ‘It’d be like I’d given up on her …'”