The widow of a NSW farmer who died in jail has been ordered to pay $2.5 million to the family of the environment officer he murdered during a protracted and terrifying ordeal.
Robeena Jane Turnbull also was ordered to pay $1.75 million to the officer's colleague who witnessed the murder and was threatened with a bullet "in the heart" during the standoff.
Ian Turnbull, then 81, was jailed for at least 24 years in 2016 for murdering Glen Turner, 51, and detaining his colleague, Robert Strange, for advantage on July 29, 2014.
After Turnbull's death in jail in 2017 and civil court proceedings, the executors of his estate agreed to separate Deeds of Settlement with Mr Strange and with Mr Turner's partner, Alison Gai McKenzie, and their two children.
"Without admission of liability" the executors, Robeena Jane Turnbull and Grant Wesley Turnbull, agreed to pay the $1.75 million and $2.5 million sums as well as interest and costs.
This was to be paid from the net proceeds of sale of the estate properties on or before June 30, 2020 and the court proceedings were dismissed.
Ms Turnbull agreed if the money wasn't paid by the due date she would become personally responsible for the debts.
After the money was not paid, Justice Michael Walton reinstated the NSW Supreme Court proceedings and in a September 29 decision, published on Friday, entered judgment against Ms Turnbull in her personal capacity.
She is ordered to pay the McKenzies $2.5 million, plus pre-judgment interest of $237,145 and legal costs.
She is ordered to pay Mr Strange $1.75 million, plus $166,002 interest and costs.
Her husband had confronted the two Office of Environment and Heritage employees as they carried out compliance work near the farmer's property at Croppa Creek in the state's north.
For more than 20 minutes he held them at gunpoint, accusing Mr Turner of persecuting the Turnbull family saying "the only way you are going home is in a body bag".
Using his .22 pump-action rifle, he shot Mr Turner twice, ignored Mr Strange's desperate pleas to stop, and fired a third shot as his bleeding victim made a desperate dash for safety.
"The events ... left Mr Turner dead and Mr Strange shattered by a prolonged and terrifying event," the sentencing judge said.
He found Turnbull was motivated by a "desire for retaliation or revenge" because he believed Mr Turner had been interfering with his efforts to clear and develop two properties for farming.
The pair had had no contact in the two years before the murder, but Mr Turner's name was on a court document received by Turnbull relating to his breaching the native vegetation act.