The man sent to jail for murdering Christchurch sex worker Mellory Manning has had his conviction quashed and will be retried.
Robin Manning, Ms Manning's brother, told Newshub the family are disappointed with the decision.
"He definitely deserves to be in prison for his part in [the murder] but there are more people involved," he says.
"It's probably best these people are put away because you really don't want them out roaming around with what they're capable of."
Mauha Fawcett was jailed in 2014 in the Christchurch High Court after being found guilty of her murder.
His conviction was quashed in the Court of Appeal in Wellington on Monday, due to a miscarriage of justice.
“The most I can say today is that there is recognition there has been a serious miscarriage of justice,” Fawcett’s lawyer Chris Stevenson said.
Ms Manning was abducted by several Mongrel Mob members on the night of December 18, 2008.
She was abducted, raped and violently murdered over a drug debt.
Her body was found early the next morning in the Avon River after she was beaten and battered and stabbed at least three times in the chest.
Fawcett was trying out for the gang at the time and was highly unlikely to have been the main perpetrator during the attack, the Crown said, but had played a pivotal role in the operation.
The Crown said at the time he had helped the attackers by working as a lookout, using a scanner to watch for police and helping dispose of the body. At most he had joined in with the others, helping to murder Ms Manning as he worked to earn a Mob patch and permanent place in the gang.
Fawcett will reappear in court on September 1.