The judge, defendants, jury, and some members of the public were hurried out of the courtroom, and have just returned.
The uproar came as CCTV evidence was played to the jury, including evidence of Peihopa being stabbed and collapsing on Bank St, in the central city.
The Crown says the man was murdered when an associate supplied a knife, and the older brother used it for stabbing.
Earlier, prosecutor Mike Smith told the jury Peihopa died when a knife was swung at him multiple times.
One blow pierced through his rib, lung and an artery - to his backbone.
“After those swings, after the stabbing, Mr Peihopa backs up some more, again still trying to keep the two of them in front of him and it ends up it would seem, backing up to the wall.”
The trial is expected to take up to two weeks.
- RNZ