"Toxicology reports - which were ultimately inconclusive - found unusual levels of sodium, nitrate and fluoride in the apartment, with a report claiming police 'strongly' believe the sisters died as a result of a suicide pact.
'There was a stream of money coming to them from their (family) that stopped in February,' one source told the
Daily Telegraph.
'Now, we don't know why it stopped, but it seems there had been some sort of a fall out with their family overseas.
'After that, they cut off communications with everybody.'
The girls also drove a black BMW coupe, which usually costs upwards of $38,000.
Building manager Michael Baird asked police to conduct a welfare check on the two women, who refused to unlock the door when officers arrived.
They said they were OK. They didn't want any police involvement. And the police left it at that.'
While it remains unclear what ultimately caused their deaths, multiple sources believe the girls had a falling out with their 'well-connected' family.
They remained inside their apartment from late February to early April, speaking to their father only once more and receiving a visit from a NSW Sheriff.
The sheriff told the young women they would be 'kicked out or evicted' from the Canterbury unit after they fell behind about $5,000 on their rent.
When the sheriff's office returned to evict them in June, they found the bodies of the two girls in separate bedrooms of the first-floor unit.
Police found no evidence that the girls were being followed by a private investigator as they had suggested to several of their friends."
Saudi Arabian sisters Asra and Amaal Abdullah Alsehli were cut off by their family before they died in a suspected suicide pact. The sisters were found in separate bedrooms of a Sydney unit last June.
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