26 I must therefore fix a term of imprisonment and a non-parole period. The offence of murder carries a standard non-parole period of 20 years. It is well established that the standard non-parole period does not apply to a conviction entered pursuant to a plea of guilty, which the Act contemplates will attract a discount. Nonetheless, it remains relevant as a matter of guidance: R v Way [2004] NSWCCA 131; 60 NSWLR 168 at [68]; [122]. It is appropriate, therefore, to consider the objective seriousness of the offence having regard to aggravating and mitigating factors relating to the offence (including the offender's state of mind).
27 I acknowledge, especially to the offender's brother Dr Owens, that this must appear to be a callous exercise but it is one the Court is required to undertake in order to determine the appropriate sentence.
28 As to matters of aggravation, as noted by the Crown, the offence involved violence and the use of a weapon. The offender stabbed his mother, a 69 year old woman, in her home. I am unable to make any finding as to his reason or motive for doing so. I have indicated that I am not satisfied that the offence involved gratuitous cruelty, nor am I able to make any finding as to the extent to which it was planned. I accept that there was a degree of pre-meditation.
29 There are no mitigating factors in the circumstances of the offence (as opposed to the circumstances of the offender).
30 The Crown referred me to the decision of R v Barbetta [2008] NSWSC 688. That was a case in which the Crown conceded the offence fell below the mid-range in seriousness. The sentencing Judge was not satisfied that the offender intended to kill and there was an element of provocation in the form of racist taunts directed towards the offender's parents. The sentencing Judge also accepted that the offender was remorseful.
31 I have also considered R v O'Connor [2008] NSWSC 1297 where Studdert J concluded that the offence was below the middle of the range of objective seriousness, albeit not by much. His Honour referred specifically to the lack of pre-meditation, an absence of planning and the fact that the offender was subjected to some loss of self-control.
32 The intention to kill and the absence of provocation or loss of self-control establish a higher level of moral culpability in the present case, although neither is an aggravating factor within the meaning of s 21A. I must also have regard to the fact that there was a degree of pre-meditation in the present case. I have come to the view that the present offence is within the middle of the range of objective seriousness but at the high end of that range.
33 The next issue is to consider whether there are matters that warrant moderating the sentence that is otherwise appropriate. The first matter is the fact that the offender has pleaded guilty, albeit on the date fixed for trial. It does not follow, from his opinion as to the impropriety of such a discount, that he is disentitled to receive it. I accept the Crown's original submission that a discount in the order of 10% is appropriate to reflect the utilitarian value of the plea.
34 As to the offender's personal circumstances, I have very little information. The medical notes record that he has worked as a political advisor here and in New Zealand. He has intermittently suffered from depression, which according to the medical notes has sometimes been severe, but I do not think he falls into the category of offender for whom general deterrence is inappropriate by reason of mental illness. It is difficult to ascertain whether incarceration will be more burdensome for him than would otherwise be expected by reason of his depression but even if that is the case, I do not think his sentence should be moderated on that account to any great degree.
35 I am satisfied on the balance of probabilities that the offender has good prospects of rehabilitation and is unlikely to re-offend. Although he has frankly acknowledged an intention to kill in this case, it appears that was due to specific aspects of his relationship with the deceased. The Crown accepted that he is a person of good character with no prior convictions. Notwithstanding the offender's protestations to the contrary, those are all matters to be taken into account in mitigation of the appropriate sentence.
36 As I have noted, a victim impact statement was read to the Court by the deceased's other son, Dr Owens. It was an articulate expression of the pain and grief that has been inflicted on him by the violent death of his mother at the hands of his half-brother. Although I can convey the sympathy of the Court to Dr Owens, the law does not permit me to take the effect of the death on him into account to increase the sentence that is to be imposed: R v Previtera (1997) 94 A Crim R 76 at 87. I acknowledge that no sentence the Court can impose will be adequate to vindicate Dr Owens' pain and loss.
37 I have considered whether I should adjust the statutory relationship between the non-parole period and the balance of term so as to provide a longer period for supervision and assistance to the offender in returning to the community. I have come to the view that, having regard to the length of the sentence to be imposed, the parole period according to the statutory ratio will afford adequate time for such supervision.
38 Adam Patrick Owens, I sentence you to a term of imprisonment with a non-parole period of 17 years commencing on 5 March 2007 and a balance of term of 6 years. You will be eligible to be considered for release to parole upon the expiration of the non-parole period on 4 March 2024. The full term of the sentence will expire on 4 March 2030.
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