Police divers will search the canals of a Gold Coast estate for clues into the murder of New Zealand man Tony Williams, who was found dead on Christmas Eve.
Mr Williams, a 38-year-old hospital orderly and part time R'n'B singer from Tauranga, was found at a unit on Sunshine Boulevard, Mermaid Waters, around 2pm (AEST) on December 24.
A post-mortem examination revealed Mr Williams had suffered injuries to his head and body from being struck with a weapon.
A homicide investigation involving up to 30 detectives has yet to lead to an arrest, prompting police to renew their calls for public assistance.
"Assistance from the public often proves invaluable during these investigations," Detective Acting Superintendent Brian Swan said.