ITSTHEVIBE: Thanks for articulating ideas which correspond closely with my hypothesis: that financial interests and family relationshiip problems are fundamental here.
Allegedly, money was invested into the RE business from a few sources i.e. B-C parents (who had mortgaged their home in their retirement) and 2 works colleagues. A divorce could threaten the finances through settlement and child alimony. Allegedly Allison's name as co-signatory on important documents could impact finances in the event of a divorce. There is allegedly the Superannuation money belonging to Allison and an Insurance cover allegedly taken out for $600,000.00 on Allison payable in the event of her death following a 13 month waiting period which is believed to be up now.
Another factor is Allison's place in the In-Law family. Allegedly she had been replaced by TM who was accepted by the In-Laws and who had developed a relationship with the 3 little girls. Allegedly TM had attended social outings with them as a psuedo family unit. Surely after the alleged two/three years of relationship between Gerard and TM, OW would have known about TM, which makes her statement that "Gerard loves Allison" suspect in my opinion. This is only my opinion on sleuthing this case with known public information, not fact.
We can ask questions such as:
Who would suffer financially in the event of a divorce? Who was frustrated with the family name being tarnished and solved the problem? Whose way was Allison standing in? Whose greed calculated financial gain from a death deemed suicide or an unknown crime - which would make several secondary victims eligible for Victims of Crime compensation. Who would not want their parents to 'lose' the family home in their retirement? Who would want TM in the family and in the business? Would a divorce ruin the family image as well as the family/business finances? Who among the close others had become 'enraged' enough to take control of the situation and end someone's life? Had Allison become a 'scapegoat' for all the financial/family problems and became 'disposable' in the eyes of close others to the point whereby they could also benefit financially from her death? Not beyond the realm of possibility given greed has motivated many a murder IMO.
Without extrapolating further, herein lies several other possible motives involving close others.
These are hypothetical questions only for sleuthing purposes.