Chris and Cru Kahui murders

The deaths of twins Christopher Arepa and Cru Omeka Kahui (20 March 2006 – 18 June 2006), two New Zealand infants from a Māori family who died in Auckland's Starship Children's Hospital after being admitted with serious head injuries, highlighted the fact that Māori children are more than twice as likely to die as a result of abuse than non-Māori and that New Zealand ranks third highest among OECD nations for child deaths due to maltreatment according to a 2003 UNICEF report.

Their family initially refused to cooperate with police in the homicide investigation into the children's deaths. On 26 October 2006, police charged their father, 21-year-old, Christopher Sonny Kahui with their murder.

Before deaths
Chris and Cru Kahui were the two survivors of triplets born prematurely at 29 weeks on 20 March 2006 at the National Women's Hospital in Grafton, New Zealand. They spent six weeks at the KidzFirst neonatal intensive care unit at Counties-Manukau hospital. During this time, nurses and social workers at the facility had informally raised concerns with a Department of Child, Youth and Family Services worker, as the parents, Chris Kahui and Macsyne King, did not spend a lot of time with the babies. According to the hospital, parents not visiting is not considered child abuse, but was a "cause for concern".

Because the infants were still technically patients of Middlemore Hospital, hospital workers regularly visited the family home. During their last visit to the hospital, Chris and Cru were reported to be healthy and well-fed. However, an autopsy showed that the twins had suffered fractured ribs in an incident prior to the fatal injuries.

Deaths
On June 13, the twins' mother, Macsyne King, returned to the house after being away overnight. She found that the boys suffered extensive bruises, and that their grandfather, William "Banjo" Kahui, had performed CPR on them. Police said the grandfather was not the only person in the house at the time. According to former MP John Tamihere, a member of the Kahui extended family had said "a young relative" was caring for the babies the day they were fatally injured. King and her husband took their children to the family G.P., who ordered immediate hospitalisation for the twins. Instead of going to Middlemore Hospital, which was only 10 minutes away, the parents went to McDonald's and returned home after several hours. King eventually took her twins to Middlemore Hospital. Doctors immediately discovered that the infants had serious brain injuries. After the twins were transferred to Starship Hospital, hospital workers notified the police. The Kahui twins were ultimately taken off life support, with Cru being the first to die at 5 a.m. on 18 June. Chris died at 6:45 p.m. later in the day. The deaths resulted in an initial serious assault investigation by the New Zealand Police before charges were upgraded to homicide.

Both infants had suffered skull fractures from blunt force trauma and Chris Kahui had a broken femur. An orthopaedic specialist told The Sunday Star-Times that in order to break the femur of a baby, the bone would have to bend at a 90 degree angle, ruling out an accidental cause of the injury.

The bodies were released to the family on 21 June and taken to the Manurewa marae for a tangihanga (funeral rites). They were buried at the Manukau City cemetery on 24 June.

While the infants were in hospital, Child, Youth and Family removed a 12-month-old brother Shane and their female cousin Cayenne, aged six months from two rented Housing New Zealand homes — one in Clendon, the other in Mangere — where the Kahui babies had lived. Police said they were treated in hospital for injuries resulting from "neglect". They had been found to be malnourished and "dirty". According to the Herald on Sunday newspaper, the two children were to be returned to the family in September 2006. But neither the parents or so-called "Tight 12" of family members who initially refused to cooperate with police, would be their caregivers.

Homicide investigation
The police believe that, while the infants were in hospital prior to their deaths, the family was uncooperative with any investigation. Pita Sharples, the co-leader of the Māori Party, said the family had agreed to talk to police on 26 June, but this did not happen. Following the deaths, Sharples said he was disgusted by the Kahui family's behaviour. He claimed some members of the family were more interested in going "to the pub and have a drink" than coming forward to police. Prime Minister Helen Clark said it was "absolutely shocking" for the family to hide behind the funeral while everyone in the country was "shocked and revolted" by the injuries. There were even reports that gang members were threatening the Kahui family in utu (or revenge) over their refusal to speak.

After refusing to speak to police in the week after the death, police went to family homes on 27 June. At least four family members, including the children's mother and aunt, were escorted to police stations. By 4 July, at least 20 extended family members were questioned, as well as 90 medical practitioners and staff who were in contact with the babies. Forensic scientists removed items such as clothing from the Kahui homes. By September, police said that the family was no longer "stone-walling" their inquiries, but a prima facie case had yet to be established. Sunday News reported on 17 September that the list of suspects was down to three and an arrest was imminent. This was followed by a police statement nine days later stating that they now know who was responsible for the deaths. However, other family members could still be charged with related crimes.

Two half-sisters of the twins' mother Macsyne King, appeared on TVNZ's Sunday 23 July episode. They claimed that Macsyne and her brother, Robert King, had told them the name of the killer. TNVZ censored the name when one of the women said it, but the gender was revealed to be male. The twins' paternal grandmother, who appeared the next day on TV3's Campbell Live, contradicted this information, stating that the killer was female.

The homes where the babies lived were also home to at least nine adult occupants, eight of whom were on some form of social welfare. They may have been receiving payments totalling between $845 and $1395 a week, depending on their age and circumstances. Work and Income New Zealand launched an investigation to see whether all the payments were legitimate. However, only two instances of substantiated benefit fraud were found for only one individual. The Clendon house had been occupied for two to three months, but neighbours had not noticed that babies were living there. According to the neighbours, Tuesday and Thursday nights were "party nights," as this was when benefit payments were received. Loud music and fighting was often heard. One neighbour said that a sixteen-year-old female appeared on their doorstep at 3:30 a.m., one morning after she said an older man at the Clendon house attempted to sexually assault her.

Murder arrest
The 1 October edition of the Sunday Star-Times newspaper published an interview with the twins' father, Chris Kahui. Kahui said that he did not kill his sons, but if Police could not find anyone else, "I go down for something I didn't do". Investigators called Kahui's interview with the police on 3 October a "major development".

On 26 October, a "carload of detectives" had gone to several addresses looking for Chris Kahui, who was brought in for questioning. At 10 p.m., it was announced in a press conference that a 21-year-old man had been arrested and charged with the murder of the twins, and would appear in the Manukau District Court the next day. No other family members faced charges with relation to the deaths.

Contrary to this, the Sunday News reported on 31 December 2006 that, according an unnamed source, a second arrest was expected. Neither the exact charges that would be laid nor the relationship of the person to the infants were revealed. Three weeks later the same newspaper said four people involved in the investigation had been summoned to the appear at the Manukau district court on 24 January. Sources told the newspaper that the new charges relate to dead infants and a pre-school child. One of those to be charged was Macsyna King, the mother of Chris and Cru. None of these charges eventuated.

According to the Herald on Sunday, the Microsoft Word file containing the press release announcing the arrest of Kahui had actually been created five days earlier, and the last edit was the day before the arrest. In the same article, the Herald reported the Police were questioning whether Kahui was actually the biological father of the twins. DNA tests later confirmed that he was the father.

Court appearances
Kahui appeared in the Number One court of the Manukau District Court on 27 October for a two-minute hearing, where he was formally charged with murder. He was asked not to plead; however, outside the court, Kahui's lawyer, Lorraine Smith, said her client would "fight the charges". He was remanded in police custody until November 10 when he was freed on bail. A pre-depositions hearing was held January 17.

A second pre-depositions hearing was intended to take place on March 21. This was so his lawyer could read 60 files of evidence collected by police, and for a medical expert from Australia to become available. This second hearing was delayed because the defence was still waiting for the medical report from Australia. The depositions hearing was finally set for June 18, with a brief court appearance on April 18. This date was later changed to sometime in 13 August.