A man who harassed and stalked a woman, making nearly 600 calls to her in two weeks, hid behind a tree waiting for her to get home with her children before fatally stabbing her 55 times.
In 2012, Nathan Boulter was jailed for eight years and six months for kidnapping and assaulting his ex-girlfriend over a 38-hour ordeal on Great Barrier Island.
On Thursday, Boulter pleaded guilty in the High Court at Christchurch on Thursday to murdering another woman on 23 July. The woman’s name is currently suppressed.
A summary of facts released to RNZ on Thursday reveals that Boulter and the victim had been in a brief relationship, which began in May.
After Boulter was recalled to prison, the woman terminated the relationship and told him she did not want any further contact from him.
Boulter “developed an unhealthy fixation with the victim”, the summary of facts said.
“Once released, the defendant began a significant electronic harassment of the victim, by making 581 calls to the victim between 7 July 2025 and 20 July 2025, which she tried to ignore.
“In response, the victim made 0 calls.”
Boulter used multiple cell phone numbers and social media profiles to harass, stalk, and threaten the woman.
On 14 July, he sent several messages to the woman via email, threatening to “chop u down to nothing…” and “one two guess who’s coming to you! Your lack of human compassion and empathy will be the death of you one day soon, my Lil hoe! Xxx”.
The woman began locking her front gate with a padlock to keep herself safe. She also told her friends and family about Boulter’s threats.
On 22 July, Boulter purchased a pig sticker knife.
The following evening, about 6.50pm, Boulter was watching the woman’s home that she shared with her children, flatmate and her flatmate’s children.
Boulter hid behind a street tree opposite her home and lay in wait.
About 7.50pm, the woman and her children returned home from the supermarket and drove up the long driveway.
The summary said that Boulter then left his hiding spot and as the woman came down to close the gates behind her leapt out and attacked her with the knife.
“He started stabbing the victim in a frenzied attack, leaving behind a total of 55 stab wounds.
“The victim’s children ran into the house as the defendant was stabbing their mother.”
The woman died within minutes.
Boulter then left the property on foot, entering a home on Queenspark Dr that was occupied by a family whom he did not know.
He placed the knife on their kitchen bench, and after being told to leave, went outside onto the driveway.
He then called his stepfather and then police, saying that he had just killed his ex.
“I just killed her now, I stabbed her to death, I f****d up, bro, I need you guys to come get me, I just killed her bro,” he told police.
He was arrested a short time later.
Boulter declined to be interviewed by police.
rnz.co.nz
