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Supreme Court 30 August 2012

R v Mahmoud Mariam

[2012] NSWSC 1023

Assault & violenceHomicideFirearms & weaponsPublic order & justice offences
CRIMINAL LAW SENTENCE CONVICTION BY JURY MANSLAUGHTER AFFRAY EACH OFFENCE CONSIDERED HIGH

Citation: R v Mahmoud Mariam [2012] NSWSC 1023
Court: Supreme Court of New South Wales
Date: 30 August 2012
Judge: Latham J

Background

The offender was convicted by jury of manslaughter and affray following a premeditated armed confrontation in a Bankstown car park on the night of 25 June 2009. The events originated from an earlier altercation at a shopping centre involving the offender's younger brother. Over the following hour, both groups recruited members and arranged to meet to settle the dispute.

The offender arrived at the car park armed with a loaded Ruger pistol. When the opposing group's van entered the car park, the offender began shooting repeatedly, firing as many as ten rounds indiscriminately. One bullet crossed Milperra Road and struck an entirely uninvolved truck driver, Mr Knight, in the head, killing him instantly. Mr Knight had no connection to either group.

A jury acquitted the sole member of the opposing group who returned fire, on the basis that self-defence could not be excluded. The jury's verdicts implicitly accepted that the offender fired first as part of a premeditated ambush.

  • What was the appropriate sentence for manslaughter, where the death arose from the deliberate and repeated discharge of a firearm in a public place during a planned confrontation?
  • What was the appropriate sentence for affray, given the overlap in criminality with the manslaughter?
  • Whether the offender was entitled to a sentencing discount, having twice offered to plead guilty to manslaughter during proceedings that ultimately went to trial.
  • What weight should be given to general and specific deterrence, rehabilitation prospects, the absence of remorse, and the offender's personal circumstances?

Decision

Latham J assessed the objective gravity of the manslaughter as high. The offender deliberately attended the car park with a loaded firearm intending to use it, even if not necessarily intending to kill or cause grievous bodily harm. His conduct represented a premeditated plan to ambush the opposing group with a pre-emptive show of force, distinguishing this case from manslaughters arising spontaneously from physical altercations.

The affray was also assessed as a particularly serious example of its kind. The premeditated assembly of eleven young men in a public place adjacent to a major road, for the purpose of settling a minor earlier dispute, demonstrated complete disregard for the rule of law. However, the court recognised that significant accumulation of the affray sentence on top of the manslaughter sentence risked double punishment, given the substantial overlap in the criminality underlying both charges.

On the question of discount, the offender had twice offered to plead guilty to manslaughter in full discharge of the indictment, and both offers were rejected by the Director of Public Prosecutions. Applying the principles from R v Oinonen and R v Johnson, the court held the offender was entitled to a 15% discount on the manslaughter sentence despite the subsequent contested trial.

Latham J placed considerable emphasis on general deterrence and gave some weight to specific deterrence, noting the offender's prior criminal history and the complete absence of remorse. The offender had provided an affidavit addressing his personal circumstances but said nothing about the impact of his offending on Mr Knight or his family. The court found rehabilitation prospects to be moderate at best and identified no basis for a finding of special circumstances warranting an extended additional term.

Orders Made

  • Convicted of manslaughter: non-parole period of 5 years and 9 months from 24 July 2010, expiring 23 April 2016; additional term of 2 years, expiring 23 April 2018.
  • Convicted of affray: fixed term of 3 years imprisonment from 24 April 2010, expiring 23 April 2013.
  • Eligible for release on parole on 24 April 2016.

Key Takeaways

  • Manslaughter arising from the deliberate discharge of a firearm in a planned public confrontation sits at the higher end of objective gravity, even where the offender did not specifically intend to kill or seriously injure anyone.
  • A sentencing discount for an offered guilty plea remains available even after a fully contested trial, where the plea offer was rejected by the prosecution. The Supreme Court assessed the discount at 15% in these circumstances, applying R v Oinonen and R v Johnson.
  • Where manslaughter and affray charges arise from substantially the same conduct, significant accumulation of sentences risks double punishment and courts will moderate the concurrent or cumulative structure accordingly.
  • The complete absence of remorse, combined with a prior criminal history and no demonstrated insight into offending behaviour, can support a reduced assessment of rehabilitation prospects.
  • Victim impact material, while acknowledged by the court as deeply moving, does not alter the available sentencing range, which is constrained by the maximum penalties and applicable principles.

Legislation and Cases Referenced

Legislation:
- Maximum penalty for manslaughter: 25 years imprisonment (Crimes Act 1900 (NSW), s 24, though not expressly cited in the judgment)
- Maximum penalty for affray: 10 years imprisonment (Crimes Act 1900 (NSW), s 93C, though not expressly cited in the judgment)

Cases:
- R v Oinonen [1999] NSWCCA 310 (sentencing discount where guilty plea offer was rejected by the Crown)
- R v Johnson [2003] NSWCCA 129 (sentencing discount where guilty plea offer was rejected by the Crown)