Michael Murray, who murdered Head Hunters gang member Connor Morris three years ago in a street fight, has lost his appeal against his conviction.
Morris, who was the partner of Millie Elder-Holmes, died instantly when Murray hit him in the back of the head with a sickle, piercing his skull, during a fight in West Auckland on August 3, 2014.
His defence argued against a murder conviction, arguing Murray had been defending his brother when he killed Morris.
But in September 2015 Murray was found guilty of murdering Morris and jailed for life with a minimum non-parole period of 10 years.
Murray appealed the conviction, his lawyer arguing that media interest in Morris' death led to an unfair trial because his partner Elder-Holmes was the daughter of the late broadcaster Paul Holmes.