The man accused of murdering Lois Tolley has appeared in the Hutt Valley District Court.
The 27-year-old did not enter a plea today, and was remanded with interim name suppression until his next appearance in the High Court at Wellington next month.
The Lower Hutt man also faces charges of assaulting with intent to rob, while armed with a shotgun, and a charge of entering Tolley's Ward St flat while armed with intent to commit an imprisonable offence.
People in the public gallery were tearful as the man appeared in the dock.
A duty lawyer asked for interim name suppression for the man, saying identification could risk his right to a fair trial and could put his family in danger.
"There's no rest, it doesn't go, doesn't leave us."
She requested privacy so the family could process what had happened.
Operation commander Detective Inspector Scott Miller said it was "fantastic news" someone had been arrested.
"My message to the other three is I know their names and we will continue to pursue them actively," he said.
Mother: 'Now I'm angry
Meanwhile the mother of murdered Upper Hutt woman Lois Tolley says her emotions are "all over the place" now that someone has been arrested over the killing.
Police arrested a 27-year-old Lower Hutt man last night and charged him with murder.
Speaking from Australia, Tolley's mother, Cathrine MacDonald, told the Herald she hadn't held anger over the killing - until now.
"I can't explain it. I've never had anger, I now have anger," she said.
"I never had anybody to be angry at, but now I am."
MacDonald and her partner will fly to New Zealand and hold a press conference next week to address the charges being laid nearly three years after Tolley was murdered in her Ward St home in December 2016.
They were either directly involved in committing the murder, helped plan the attack on Tolley, or assisted the killers after the murder, police said on the first anniversary of the death.
The police investigation team had worked through more than 130 people of interest at that stage.
She described her daughter as a beautiful, caring person who was "very much loved by so many".
"We miss Lois so much, this has devastated our family and her friends, they stole her future from her and all of us."
Tolley's family and friends commemorated her life 10 months after the murder by releasing 100 balloons in an Upper Hutt park.
Upper Hutt's mayor Wayne Guppy told Newstalk ZB the murder had a big impact on the community and the arrest brought closure to the family and residents.
"Until the offenders are apprehended, there's always something in the back of people's minds that there are these lowlifes that wander the streets of the country and there's no place for them."
He said the arrest was a testament to the New Zealand Police's patience and professionalism.