What if this family has a deep seated distrust of police? Sarah may have been conditioned to be wary of the law and to be loyal without question to her father. She is most likely the lynch-pin to solving this terrible crime but is withholding knowledge or suspicions because of this misplaced loyalty. I don't understand it myself but I'm trying to figure out her psyche.
Borce's behaviour is of a guilty man, imo.
Some thoughts -
If Sarah has traveled overseas or is still there, wouldn't this discount her being involved in her mother's death and/or disposal? Wouldn't the police advise her not to leave the country even if she's not charged with a crime?
In msm it's stated that Sarah's birthday was earlier in the year so why did Karen wait until late June to make her move? Did Karen have second thoughts about leaving, was she was persuaded by Borce or Sarah to remain and that things would improve, or is this a complete fabrication by AR? The marriage was rocky but did Karen have a set plan or date to separate? Was it an empty threat spoken in the heat of the moment?
http://www.news.com.au/national/vic...e/news-story/2526cf93baecbee66f85d37013a82fde
Are police interested in identifying the Merc's driver and destination travelling
towards the disposal site because it's essential to prove this was how the body was transported? CCTV footage travelling back home isn't damning enough unless the killer was seen specifically at the site before leaving.
If Karen were suffocated/strangled on a surface that can be removed like a bed cover, it would be difficult to find forensic evidence to convict Borce, imo. This is why I don't believe an accident took place like falling down the stairs, there'd be blood splatter (minuscule amounts unseen by the naked eye) that Borce couldn't remove.
Police will need to prove beyond a reasonable doubt that Borce somehow took Karen's life, drove her vehicle with the body in the boot to the disposal site and later lied to police to evade justice.
Borce acted quickly with removing the body from the home, if she were wrapped in the bed covers and the boot of the Merc lined with plastic, there won't be dna evidence of a dead body.