A man stabbed to death in Rotorua had earlier been convicted of indecently assaulting a teenage boy.
Roman Henry Skorek was found with wounds to his face and body in Kuirau Park early on Tuesday morning.
Rotorua baker Rawiri James Samuel, 21, and an unnamed 20-year-old man have been charged with his murder.
Two youths, aged 14 and 15, are charged with assault and police say other charges may be laid.
It is not known what Skorek was doing in the park. He usually divided his time between Great Barrier Island in the Hauraki Gulf and a home on the Pacific Island of Niue.