New information is rolling in for police working on the case of Upper Hutt woman Lois Tolley, who was murdered in an execution-style shooting last year.
Tolley, 30, was stabbed and shot at point-blank range in her house on Ward St in Upper Hut on December 9 last year.
Tolley's case aired on Police Ten 7 last night, revealing previously unreleased footage of four men leaving Tolley's house that night, with one hanging back from the others.
The man reportedly looked "visibly distressed" and "called out to the others in remorse", police said.
Detective Senior Sergeant Glenn Barnett said today police had received a "good response" from members of the public since the episode aired and footage was made public.
As well as the CCTV footage, photos of two vehicles of interest have been released. They are a silver Mazda 6 and a silver Nissan Stagea.
The cars were tracked from Stokes Valley to the Upper Hutt area on the night Tolley was killed.
People had been calling up on the night of the episode and later on with information on footage shown in the show, "just things about the vehicles and persons of interest", Barnett said.
Police were still following up on the calls "as we speak", he said.
He encouraged anyone with information to contact police.
"Your calls will be treated in confidence, and any information - no matter how small - will be welcomed by in the investigating team."
Police believe the men in the footage talked to someone about what they had done, and that someone will know who was involved.
Two blue cars - a sedan and a hatchback - were also seen in the area and are of interest to police. One may have been a Subaru WRX.
Barnett said police have still not finished going through CCTV footage from the night of the murder. He could not say exactly how many hours of footage there were to go through, but there was "a lot".
Anyone with information can call the Operation Archer team on 04 527 2300. Information can also be provided via the Police Ten 7 show or anonymously via Crimestoppers on 0800 555 111.