However, in the inquest it was reported she withdrew the $80,00 from the Ashmore bank on Oct. 15th. I haven't been following, is it your theory this wasn't her?
Interestingly, Owen's birthday was Oct. 18th. That was the key date that Sally, and IMO police, would take seriously, not contacting her son on his birthday. So the evidence - however inadequate it seems today - from the bank that only 3 days earlier she had been alive and insisting that she didn't want her children to know where she was, would certainly seem to answer her children's questions.
I must say, it would be very unpleasant to have to pass this news on to any woman's children. I don't know whether, at that point, Sally believed she was involved with a man. There was certainly no evidence that she was anything but single and completely independent. IMO it would be easy, in those circumstances, for authorities to see her as the victimizer, not the victim.
JMO