Erin Patterson was convicted of triple murder with no known motive. Still, much has been made of the tensions that simmered with her estranged husband Simon Patterson, and frustrations with her in-laws Don and Gail Patterson and Heather and Ian Wilkinson.
In Chapter Two of The Case of the Mushroom Lunch, Rachael Brown and Stephen Stockwell retrace Erin Patterson's key life events before she killed her in-laws: her early career, personality quirks, how she met Simon, and their troubled partnership as they raised two kids.
Editor's note (31/07/25): In this episode it is stated Simon Patterson's child support payments were $40 a week; they were $40 a month.