Stephen Thorpe. Photo: Supplied
An Auckland insect expert was caught in a violent struggle before he was fatally stabbed, police said.
Police have revealed more details about the death of entomologist Stephen Thorpe, 54, on Saturday morning.
Thorpe had been at the Blockhouse Bay tennis club, doing work on his laptop at the time, police said.
He then went outside, where a violent struggle took place, ending in Thorpe receiving stabbed wounds before dying at the scene.
Detective Inspector Glenn Baldwin said Thorpe went outside and a short time later "cries for help were heard".
The person who attacked Thorpe likely had blood on them when they fled, but have not been found yet.
Baldwin said the thoughts of police were with Thorpe's family following the "tragic event".
"Police have been in contact with immediate family, who are based in Australia, and we will keep them updated as the investigation progresses."
Baldwin said police had been preparing to lift cordons at the scene on Monday, following the completion of a scene examination.
Police urged anyone with CCTV or dashcam footage to get in contact.
Emergency services attend an incident in the Auckland suburb of Blockhouse Bay on 24 August 2024. Photo: RNZ / Calvin Samuel
A staff member working at the club witnessed the victim in a violent struggle and went to get a phone to call for help, Baldwin said.
"This offender will have gone somewhere, likely in an agitated state and likely with some blood on him," he said.
Police want anyone in the area - around Rathlin Street, Whitney Street, Exminster Street and Terry Street - who anything suspicious about11.30am to get in touch.
"I know this event has rocked the local community and membership at the tennis club," Baldwin said.
There will be an increase in patrols in the area and police urged anyone with CCTV or dashcam footage to get in contact.
Emergency services attend an incident in the Auckland suburb of Blockhouse Bay on 24 August 2024. Photo: RNZ / Calvin Samuel
Thorpe had nearly 29,000 observations about 5000 species posted on the iNaturalist NZ nature watching website.
Jacqui Knight, from the Moths and Butterflies of NZ Trust, said she had known Thorpe for about 10 years as the trust had a butterfly habitat very close to the tennis club.
Knight described him as being "very tolerant and knowledgeable" of anything to do with insects, which were his passion. He would go on daily walks through the reserve by the club, searching for insects and plants, she said.
"He spent seven days a week at the office - he just loved it. He was a loner who kept to himself most of the time and wouldn't hurt a fly. It's just so tragic this has happened."
Thorpe had no close relatives living in New Zealand as far as Knight knew, and had originally been from Australia.
"He was so well-spoken and just loved the nature here, he was very successful at what he did too and had quite a few insects named after him I believe."