Citation: R v David William Weightman [2005] NSWSC 1354
Court: Supreme Court of New South Wales, Common Law Division
Date: 23 December 2005
Judge(s): Hidden J
Background
The offender pleaded guilty to two counts of murder. On 8 January 2000, when he was twenty years old, he and an accomplice killed his adoptive parents at their home in Glen Alpine, New South Wales. The killings were premeditated: the offender and his accomplice had agreed upon the method and motive over the preceding two days, and the accomplice was promised $17,000 for his participation.
The motive was financial. The offender stood to inherit a substantial estate from his parents, who were comfortably well-off. He acknowledged planning the murders to access that inheritance and denied any personal animosity toward his parents, describing their relationship as loving. In the event, he inherited an estate valued at approximately $800,000.
The deaths were initially treated as accidental following a car being found at the base of an embankment in Heathcote National Park. Concerns raised by relatives prompted a further forensic review, which could not exclude foul play. The offender made full admissions on 2 February 2004, after being confronted by a relative, and was charged with both murders the following day.
Legal Issues
- What sentences were appropriate for two counts of murder, having regard to the objective seriousness of the offences?
- What weight should be given to mitigating factors, including the guilty pleas, cooperation with police, and undertaking to assist authorities in future?
- How should the sentences be structured (concurrent or cumulative) to reflect the totality of the offender's criminality without producing a disproportionate result?
- What discount percentage was appropriate for the combination of guilty pleas, police cooperation, and future assistance to authorities?
Decision
Hidden J found the murders to be of considerable objective gravity. They were planned killings of two people, carried out for purely financial gain. The offender drugged his parents before the killings and participated directly in the murder of his father by holding down the victim's legs while the accomplice asphyxiated him. The mother received a lesser amount of sedative, meaning she was unlikely to have been unconscious when she was killed.
The court considered a range of subjective factors. The offender was twenty years old at the time of the offences and had made full and frank admissions to police, including a detailed account given at the crime scenes in videotaped interviews. He had a minor criminal record of no significance. Psychiatric evidence was before the court, though the content of that material is not fully reproduced in the available text.
On the question of sentencing structure, Hidden J determined that partial accumulation of the two sentences was appropriate, given the offences involved two separate victims and the circumstances called for more than concurrent sentences. The court also found that a discount of thirty percent, rather than the forty percent that might otherwise have applied, was warranted. A higher discount would have produced an aggregate sentence unreasonably disproportionate to the gravity of two premeditated murders. Of the thirty percent discount, twelve percent was assigned specifically to the offender's undertaking of future assistance to authorities.
The court calculated a notional starting point of forty years' imprisonment (absent any discount), and applied the thirty percent reduction to arrive at an effective total of twenty-eight years, structured as two twenty-five-year sentences running partly concurrently and partly consecutively, with an effective non-parole period of twenty-two years.
Orders Made
- For the murder of the father: imprisonment for 25 years, with a non-parole period of 19 years, commencing 2 February 2004.
- For the murder of the mother: imprisonment for 25 years, with a non-parole period of 19 years, commencing 2 February 2007.
- The offender will be eligible for release on parole on 1 February 2026.
Key Takeaways
- Hidden J applied a thirty percent sentence discount where guilty pleas, police cooperation, and future assistance to authorities were present, declining to apply the higher forty percent that might otherwise have been available on the basis that it would produce a result disproportionate to the seriousness of two premeditated murders.
- Where an offender commits multiple murders against separate victims, partial accumulation of sentences is appropriate to reflect the full criminality involved, rather than allowing sentences to run wholly concurrently.
- Of the thirty percent total discount, twelve percent was separately identified as attributable to the offender's future assistance to authorities, as required when quantifying that component of a sentencing reduction.
- A notional pre-discount sentence of forty years was identified as the appropriate starting point for two planned murders of family members carried out for financial gain, providing a transparent basis for calculating the discounted terms.
- The 2002 amendments to the Crimes (Sentencing Procedure) Act, which introduced standard non-parole periods, did not apply because the offences were committed in 2000, prior to those amendments taking effect.
Legislation and Cases Referenced
Legislation:
- Crimes Act (NSW)
- Crimes (Sentencing Procedure) Act (NSW), including s 21A (aggravating and mitigating factors)
Cases cited: No specific cases were cited in the portions of the judgment provided.