A blunt instrument is believed to have been used to kill Hamilton man Brent Paul Brown in his Dinsdale home last week.
Waikato Police have launched a homicide investigation into the 45-year-old's death after a post mortem showed he had multiple injuries, but the cause of the death was inconclusive.
Brown was found dead at a house in Poaka Ave in Dinsdale last Wednesday night.
Detective Inspector Hywel Jones believed a blunt instrument was used to attack Brown.
Police are still looking for the weapon and are carrying out a forensic examination of the scene.