Police investigating the death of Craig McKelvie have appealed to the public for information in identifying those they believe may have been involved in the incident that led to his death.
McKelvie, 52, who has been described as having a "colourful history", was found seriously injured at an address in Mason Street, Lower Hutt on 14 October last year. He later died of his injuries after being taken to hospital.
Detective Senior Sergeant Martin Todd said: "As a result of extensive enquiries over the past year, the investigation team are confident we understand the reasons that led to Mr McKelvie's death.
"We continue to investigate with the hope we can hold those responsible accountable for their actions and provide his family with answers.
"We recognise Mr McKelvie had a colourful history which has been recounted since his death. Regardless, no one deserves to die in the manner that he did."
The family of McKelvie in a short statement acknowledged that, Craig was someone who had always "lived life on the edge" and was "always on the move". They also described him as a caring, cheeky and loving member of the family who would give the "shirt off his back" to help others.
Police believed key details about McKelvie's death were being kept from investigators.
"Where loyalties have previously prevented you from speaking, we ask you to reconsider what is gained from remaining quiet when Mr McKelvie's family remain in the dark over the death of their loved one," Todd said.
"I know there are a lot of people out there, some being friends of Mr McKelvie, who know what happened and have the crucial information relating to his death and I urge you to contact police."
Anyone with information is being asked to contact police on 105 quoting crime number 221015/8888 or anonymously via Crime Stoppers on 0800 555 111.