Hayden Miles' killer is appealing against his conviction.
The Court of Appeal said today that Gavin John Gosnell had lodged an appeal against his conviction and sentence for the murder of the 15-year-old in August 2011.
Gosnell, 28, was last month sentenced to life imprisonment, with a non-parole period of 18 years.
He was found guilty of murder after a seven-day jury trial in Christchurch in April.
Gosnell repeatedly punched and kicked the boy in Gosnell's Cashel St flat, left him badly injured on a couch overnight and, finding him dead the next day, cut up his body and buried the remains in two cemetery graves.
He admitted the dismemberment, but his defence was that the teenager's death was manslaughter.
Before sentencing in the High Court in Christchurch on June 5, Gosnell dismissed his defence counsel, Craig Ruane, and read a statement saying he wanted to appeal against his conviction because he believed there had been a miscarriage of justice.
He said he took responsibility for assaulting Hayden and dismembering his body, but he could not take responsibility for his death or his murder.
"I am not a murderer and I did not murder Hayden Miles," he told the court.
The Court of Appeal said no date had yet been set for the appeal to be heard.
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