The man charged with the murder of mum-of-two Chozyn Koroheke can be named for the first time.

Turiarangi Tai, 22, this morning pleaded not guilty through his lawyer at the High Court in Auckland to murder and unlawful possession of a firearm.

Another woman charged with being an accessory appeared alongside the man and was granted interim name suppression.

Koroheke, also 22, was fatally shot at close range on April 4 in Pakuranga Heights, in what is believed to have been a domestic incident.

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The woman is understood to be a friend of the accused killer.

Earlier in the investigation police arrested three other people on unrelated matters.

The men, two aged 30 and one aged 27, have been charged with unlawful possession of a firearm.