Background
In November 2018, Erueti Wirihana, then aged 22 and a patched gang member, attended a tangi (funeral gathering) at his father’s Hastings home on the day his father died from a terminal illness. Edward (Eddie) Peters — the deceased’s lifelong best friend but not a gang member — also attended. Late that evening, a senior gang member challenged Peters about his presence. Wirihana intervened and punched Peters in the jaw, knocking him to the ground. Wirihana was told to leave Peters alone, and Peters was escorted from the property.
Wirihana refused to let the matter rest. He chased Peters approximately 300 metres down the street, grabbed him, held him against a fence, and punched him in the head. He then stomped twice on Peters’ head while he lay on the ground before being pulled away by an associate. Police found Peters unconscious in a pool of blood at 12:25 am. Peters was hospitalised and appeared to recover briefly, but his condition deteriorated; he suffered seizures, a ruptured left vertebral artery, and bleeding around the brain. He was declared brain dead on 22 November 2018 and pronounced dead on 24 November 2018.
Pathological evidence established that one of Wirihana’s two punches to the head caused a tear in Peters’ left vertebral artery — the injury that ultimately proved fatal. Because it could not be determined which punch was causative, and because there was no evidence of murderous intent at the time of the first punch, the Crown amended the original murder charge to manslaughter. Wirihana pleaded guilty to manslaughter and to a separate charge of conspiring to pervert the course of justice, arising from a false alibi fabricated with his then partner in December 2018 and reaffirmed in 2022.
The Court’s Holding
McHerron J fixed a starting point of eight years’ imprisonment for the manslaughter, placing the offending just above the middle of Band Two of the Taueki framework (five to ten years) for serious violence. Aggravating features included the fatal severity of injury, repeated blows to a vulnerable area (the head), the victim’s vulnerability as an intoxicated man surrounded by gang members, and a limited degree of premeditation in that Wirihana chased Peters down the street before the second attack. The court declined to find any mitigating features in the manner of offending itself.
The starting point was uplifted by nine months to reflect the conspiracy to pervert the course of justice charge — the same uplift agreed by both Crown and defence — bringing the combined starting point to eight years and nine months. The court then applied a 15 per cent reduction for the late guilty plea (entered seven working days before trial, conditioned on new pathological evidence fixing cause of death) and a five per cent reduction for Wirihana’s relative youth at 22, yielding a total discount of 20 per cent.
The final sentence was seven years’ imprisonment for manslaughter, with a minimum period of imprisonment (MPI) of three and a half years — 50 per cent of the sentence — on the grounds that a standard one-third parole eligibility date would be insufficient to achieve accountability, denunciation, and deterrence for violence causing death. A concurrent sentence of nine months was imposed for the conspiracy charge.
Key Takeaways
- A single punch that causes a fatal vertebral artery tear can ground a manslaughter conviction even where the exact causative blow is unidentifiable, provided all relevant violence is charged together.
- Under the Taueki sentencing framework, manslaughter involving head stomping, victim vulnerability, and limited pursuit-based premeditation sits just above the mid-range of Band Two, attracting a starting point around eight years.
- A guilty plea entered less than two weeks before trial on an amended charge — shaped by late-emerging medical evidence rather than any earlier acknowledgment of responsibility — will generally attract no more than a 15 per cent sentencing discount.
- A minimum period of imprisonment at 50 per cent of the head sentence is appropriate where release at one third would insufficiently reflect denunciation and deterrence for serious fatal violence.
Why It Matters
This sentencing decision illustrates the complex interplay between causation and culpability in fatal punch cases. The court’s willingness to charge and sentence across two separate assaults — even where only one caused death — reinforces that the full arc of violent conduct remains relevant to culpability assessments, not merely the precise blow identified as causative. Defence practitioners should note that the court gave limited weight to grief, substance use, and youth where the defendant had prior court appearances and was encouraged to stop but continued attacking.
The case also highlights the collateral consequences of fabricating alibis in serious criminal investigations. Wirihana’s partner was separately convicted and sentenced, and his own sentence was uplifted by nine months for sustaining the false alibi over four years. The judgment serves as a reminder that perverting the course of justice carries real sentencing weight even when the underlying investigation ultimately succeeds.