Mitigating matters
37Relevant mitigating matters include that this was not a planned killing (see s 21A(3)(b)); that there was a degree of provocation by Mr Reid, albeit in a context where on the evidence as to what he said, he acted to defend himself (see s 21A(3)(c)); and that at the time of the offence for which he is being sentenced, Todd Carney did not have a criminal history (see s 21A(3)(e)). On sentencing it was revealed that Todd Carney had served a sentence for other serious offences committed in December 2006. It will be necessary to return to this.
38Given the evidence of Todd Carney's very substantial abuse of illicit drugs prior to this offence, contrary to the submissions advanced on his behalf, that he was a person of good character, may not be accepted, even though, clearly, killing Mr Reid appears to have been out of character (see s 21A(3)(f)).
39It is also settled that alcohol and drug consumption, of itself, cannot mitigate the seriousness of an offence, but it may explain the context in which it occurred (see R v Fletcher-Jones (1994) 75 A Crim R 381). In R v Gordon (1994) 71 A Crim R 459 at 467, Hunt CJ at CL explained that in some circumstances 'intoxication will mitigate the offence because the offender has by reason of that intoxication acted out of character'. In this case, however, on the evidence which Todd Carney gave at the trial, he was not adversely affected by either alcohol or drugs on the morning of 29 January 2006, even though he had been at a party all night where on other evidence, both drugs and alcohol had been consumed.
40Other evidence of Todd Carney's drug and alcohol abuse and mental health must nevertheless be considered in sentencing, because of the consideration required to be given to the factors specified in s 21A(3)(g), (h) and (i) of the Act, as to whether:
"(g) the offender is unlikely to re-offend,
(h) the offender has good prospects of rehabilitation, whether by reason of the offender's age or otherwise,
(i) the remorse shown by the offender for the offence, but only if:
(i) the offender has provided evidence that he or she has accepted responsibility for his or her actions, and
(ii) the offender has acknowledged any injury, loss or damage caused by his or her actions or made reparation for such injury, loss or damage (or both),"
41Todd Carney's evidence, particularly that given on sentencing as to his remorse for having caused Mr Reid's death, was given in terms which must, on any view, be accepted as evidencing that he has come to accept his responsibility for the actions which caused Mr Reid's death, actions for which he is clearly remorseful. That is consistent with observations made in a presentence report and a psychologist's report in evidence.
42That is an acceptance which clearly only developed slowly over time. It was not until the second trial in 2012 that Todd Carney revealed that it was he who had beaten Mr Reid with the pole. As I have explained, even then he did not give a complete account of his actions. At the second trial he did give evidence of his regret at Mr Reid's death, but up until conviction, Todd Carney clearly did not accept his criminal responsibility for his actions in causing that death. Nevertheless, I do accept that he has now shown his remorse.
43It was not the case advanced for Todd Carney that his reaction to Mr Reid's attack was the result of either mental illness, or the effects of drugs or alcohol. What was submitted, however, was that given his history, the sentencing exercise was in his case, an exceedingly complicated one. That submission rested on his history of drug and alcohol abuse and mental illness.
44The evidence shows that Todd Carney has given those who have diagnosed him a history of very significant drug and alcohol abuse both before and after January 2006. There is also a family history of schizophrenia. Both his maternal grandfather and two uncles suffered from that mental illness.
45It was not in issue that in December 2006, at the time that he committed other serious offences, he was suffering chronic paranoid schizophrenia and substance abuse disorder. Nor was it in issue that his illness is now in remission.
46Todd Carney was already in custody when charged in relation to Mr Reid's death, but as was submitted on his behalf on sentencing, his later offending did not establish that in January 2006, when he killed Mr Reid, he had in his then ordinary state, any inclination to violence.
47On the evidence, at the time that he killed Mr Reid in January 2006, Todd Carney was not mentally ill. His very substantial drug abuse no doubt contributed to the full blown mental illness which he was suffering by December 2006, but he had not already succumbed to that illness in January 2006. It follows that neither his prior drug abuse, nor the fact that he later suffered considerably from the mental illness to which he succumbed, can excuse the grave offence for which he is now being sentenced.
48These conclusions rest on evidence which is in part, contradictory. The views expressed by experts must be considered in the light of the evidence given in this case. In evidence was a presentence report, as well as a report prepared in August 2012 by the forensic psychologist Laura Durkin and two reports prepared by the psychiatrist Dr Olav Nielssen. All of this evidence reveals, as Ms Durkin described it, that Todd Carney has given contradictory and inconsistent accounts, over time, as to his drug taking, his offending and the onset of his symptoms.
49There has been a consistent account given by Todd Carney of having had a happy home life and succeeding at school, both academically and in sport, until he suffered an injury on the field in 2005, which brought to an end his ambitions to play first grade rugby league, not long before he did his HSC. The evidence which his mother gave at the sentencing hearing corroborated that account.
50Todd Carney's evidence at the sentencing hearing suggested that his drug abuse, mainly ecstasy and cocaine, had been a response to his knee injury in 2005. His evidence at the trial made no mention of such drug use, or indeed alcohol abuse, only that he had had some drinks the night before he killed Mr Reid and that he did not use cannabis in January 2006. Another account, referred to in the presentence report, was of infrequent use of ecstasy before the end of 2005.
51On the accounts he has given Dr Neilssen and Ms Durkin, however, even prior to his injury in 2005, Todd Carney was significantly abusing various drugs. This began in late 2004 and early 2005, when he was aged 17. That abuse escalated into heavy drug use in his final year of school, with the result that he completed his HSC, but with insufficient marks to allow him to matriculate.
52In Ms Durkin's 2012 report, there is reference to an account that he commenced drinking alcohol at parties from age 14, consuming 5 to 10 alcoholic drinks per occasion. By age 15 this had increased to 10 to 15 drinks. Alcohol abuse reduced by the time he was aged 18, when his drug abuse increased substantially.
53He was introduced to ecstasy on New Years Eve 2004/05. He began using the drug weekly, increasing his consumption as his tolerance increased. After his knee injury later in 2005, he was consuming large quantities, 10 or 12 pills per night, 2 to 4 times a week, until his arrest in December 2006. He also began using cocaine on weekends when aged 17. The frequency of that use increased at the end of 2005, to the point where he was using cocaine multiple times during the week and on weekends. This also continued until his arrest. He also first began using the drug speed when aged 17, when that drug was available and began using it with frequency in mid-2006. By age 18 he also began using the drug ice and by late 2006 was using it more frequently, at times going on 'benders'. His drug abuse increased after January 2006, when he killed Mr Reid.
54After his arrest in December 2006 he ceased taking drugs, without a medical detoxification or rehabilitation programme and in custody undertook a relapse prevention course, as well as other programs. He is awaiting acceptance into the Getting Smart program, for further drug and alcohol treatment.
55Todd Carney also gave Ms Durkin an account of his mental health history, which was somewhat inconsistent with his earlier accounts to Dr Nielssen, but accords with the evidence he gave on sentencing. He reported to her no significant psychological problems prior to his use of illicit drugs. He gave an account of stress and anger after the knee injury, which brought his ambitions in relation to rugby league to an end, but no symptoms of a diagnosable disorder at that point.
56As his drug use during 2005 escalated, however, he began experiencing psychotic symptoms, particularly paranoia. While his memory was somewhat vague, his account to Ms Durkin was that it was while away at 'Schoolies' on the Gold Coast in late 2005, that his friends began noticing unusual behaviour, which he had been attempting to hide. This was consistent with the evidence given by his mother. He began developing persecutory delusions, which became much more prevalent during 2006.
57By comparison to these accounts, Todd Carney earlier gave an account to Dr Nielssen, that he had been paranoid at the time of this offence, in January 2006. That was an account which he later refuted when he spoke to Ms Durkin in 2012, telling her that it was Mr Reid's death which resulted in the real deterioration of his functioning. He could not then recall experiencing symptoms of psychosis until after Mr Reid's death.
58Ms Durkin noted his inconsistent accounts about these timelines and concluded that his psychological state was unstable in January 2006. She noted that in 2010, Dr Nielssen was of the view that he was then psychotic and experiencing his first episode of psychosis, but on Todd Carney's account to her, she came to the view that he was then vulnerable to stress and struggling to maintain connection with reality at times, then being in the early stages of psychosis. In her opinion, this would have impacted his judgment and self regulation at the time of this offence.
59After Mr Reid's death his substance abuse increased and his psychosis worsened, to the point where he believed that his family and his employer were out to get him, or kill him. He had pursued studies at TAFE and had obtained a plumbing apprenticeship, but that employment ceased when his delusions increased and he was hospitalised. His delusional thoughts were of a conspiracy against him, evidenced by arbitrary events. His paranoia became so significant that he believed his family was trying to poison him and he moved to live with his grandparents on the Central Coast. He obtained a second apprenticeship, but abandoned that employment when the delusions also encompassed that employer.
60On his evidence, eventually he reached such a delusional state that he decided to kill himself. It was in December 2006 that he acquired a firearm and ammunition and drove to Sydney. He was speeding and when police sought to pull him over, a chase ensued, with the result that when finally pulled over, he fired at police. He was arrested and later convicted of the offences which he then committed. In prison he attacked another inmate while being transferred between correctional centres, believing that the other inmate had a knife and was going to kill him.
61He was eventually detained in the psychiatric ward at Long Bay prison for some 3 months and treated there with anti-psychotic medication. His suicidal ideation lasted for some time and he suffered depressed mood, but the medication succeeded to the point that his psychotic symptoms ceased. In 2010, Dr Nielssen assessed that Todd Carney's schizophrenia was in remission and in 2012, Ms Durkin agreed with that assessment.
62In 2007, on the account then given, when Todd Carney made no mention of his conduct towards Mr Reid, Dr Nielssen was of the view that his December 2006 offending was at the time he was experiencing his first psychosis. Dr Nielssen was then of the view that he had a defence of mental illness available in relation to the offences he committed in December 2006, but understood that it was not to be relied on, other than as to sentence.
63In 2010, on the different account then given, Dr Nielssen was of the view that it was in January 2006 that Todd Carney was in the first episode of schizophrenia. That account was different in relevant respects to his earlier account and his later accounts. On that history Dr Nielssen was of the view that his killing of Mr Reid in January 2006, was associated with his then emerging mental illness, but that the schizophrenia and substance abuse disorder from which Todd Carney suffered was in remission in 2010. He had received effective treatment, with the result that in Dr Nielssen's opinion, he then carried a low risk of further similar offences and had good prospects of rehabilitation.
64Dr Nielssen referred to studies which showed that there was a growing body of evidence of greatly increased risk of homicide and serious violence to self and others during a first episode of psychosis, prior to initial treatment, with a peak of violent offending just prior to first contact with mental health services.
65In the account he gave Ms Durkin in 2012, however, Todd Carney disagreed with what Dr Nielssen understood in his 2010 report, as to when his psychosis first emerged and gave a different history. It was on this basis that in 2012, Ms Durkin was of the view that Todd Carney's psychological stability was compromised from late 2005. This initially abated when he was not under the influence of substances, but still, he was psychologically fragile when he killed Mr Reid. His condition deteriorated significantly afterwards. By late 2006, his psychotic symptoms did not abate when the effects of substances wore off.
66Ms Durkin was of the opinion that Todd Carney could not be considered to be experiencing a substance induced psychosis when he killed Mr Reid, but his symptoms and conduct suggested that he was suffering from schizophrenia when he offended further in December 2006. That condition had been triggered by his drug use, but it had stabilised with treatment in custody. In the result by 2012 he had not experienced symptoms of schizophrenia for some 5 years, with the result that his risk of violent re-offending had been lowered.
67It seems to me on all of the evidence that this view must be accepted. It is consistent with the evidence Todd Carney gave both at trial and on sentencing. That evidence did not leave open the conclusion that Dr Nielssen's 2010 opinion, formed on quite a different history, could be accepted.
68As to his prognosis, Ms Durkin was of the opinion that given Todd Carney's family support; limited criminal history, when his mental health was compromised; his positive and pro-social relationships maintained through most of his life; his cessation of substance abuse; lack of custodial misconduct; and that he did not appear to possess anti-social attitudes, his risk factors for further offending were few. At the sentencing hearing Mrs Carney gave evidence supportive of these views.
69Ms Durkin recommended however, that Todd Carney's mental health continue to be monitored, because that was his most significant factor for recidivism and that he should engage in drug and alcohol programmes, such as the SMART programme, as well as study or training, which would facilitate his ultimate transition back into the community, including programs to prevent relapse. She observed that his compliance with medication would require long term monitoring.
70In the face of all of this evidence, I am of the view that so long as Todd Carney maintains his abstinence from drugs and alcohol and remains compliant with the anti-psychotic medication which has resulted in his mental illness going into remission, he is unlikely to re-offend and has good prospects of rehabilitation. He was aged 18 years at the time he killed Mr Reid and now, at 25, with the treatment he has received and the term of imprisonment which he has and is to serve, he is clearly motivated to ensure that he does not offend again, once released on parole. It is also significant that on his mother's evidence, he has his family's support in achieving his intentions.
71While he did not receive the support which he required when he was succumbing to his drug induced mental illness over the course of 2006, both she and his father have undertaken training designed to ensure that they have the skills necessary to provide him with such support in the future. These are all matters which must be taken into account in the sentence which is imposed.
72The risk is, of course, that despite all of this, he fails to adhere to his current intentions, when released into an environment which is not structured in the way which has been of obvious benefit to him and where he has access to acquaintances and social circumstances he has identified as having been of considerable negative influence on him in the past.
73This is to be considered in the context of the matters dealt with in the presentence report, which confirmed that Todd Carney had been urgently scheduled in January 2007, due to concerns about his safety and that he had incurred three institutional misconduct offences, two for fighting, the most recent of which had occurred in May 2011. His urine samples had not detected unprescribed medication or illicit substances, although one was found to be a diluted sample. He had a history of employment and study and was considered to be a compliant inmate.
74He is considered to be suitable for a medium to high level of intervention, with the need to address anger management and drug and alcohol issues, with a focus on relapse prevention and referral to local community mental health for monitoring.
75I also note that he has been assessed as suitable for a community service order under s 86 of the Act, but I am satisfied that such an order may not be made in this case. Given the gravity of this offending, only a custodial sentence is appropriate, but it is one which must reflect a conclusion that subject to him maintaining his treatment and not abusing drugs and alcohol, there are reasons for considering that it is likely that he will not re-offend and has good prospects of rehabilitation.