Police reveal Upper Hutt woman Lois Tolley was stabbed and shot at point blank range in what they describe as an execution-style killing.
Detective Senior Sergeant Glenn Barnett speaks to reporters outside Ms Tolley's home in Upper Hutt. Photo: RNZ / Emile Donovan
The 30-year-old's body was found in her Ward St home on 10 December.
Ms Tolley had been the victim of an execution-style killing, police said. Photo: Supplied / NZ Police
In an update to media outside Ms Tolley's home, Detective Senior Sergeant Glenn Barnett said police had found forensic material that would lead to identification of the killers.
He said a large team of 20 staff were working on the investigation.
Mr Barnett said police were looking for four men aged in their 20s who were seen heading to the house on the day she was killed.
A large number of people had come forward to pass on information about the killing, he said. He urged those who were involved in the killing but were not the "main player" to come forward.
The people responsible for the killing would be waking each day wondering when police would be arresting them, he said.
Mr Barnett said the killing was not a random attack, and police remained open minded as to why she might have been killed.
Police had been examining the crime scene for a week and were working with scientists from ESR to identify forensic evidence.
The weapons used in the killing have not been located.