KEY POINTS:
Augustine Borrell's family have made an emotional plea for his killer to confess.
"We want to know who was involved. We just want closure," said Augustine's adopted older brother, Tai Walter-Benedito, a policeman in Manukau.
The family home, in Sutton Cres, Papatoetoe, was packed yesterday with grieving relatives and friends paying their respects.
A table outside displayed photos of Augustine, one of him taken after he played rugby for a local Cook Islands representative squad hours before he was killed.
The mood of the dozens of people coming in and out of the house was one of disbelief.
Mr Walter-Benedito said his parents Charlie and Agnes Borrell, who have six children, were in shock.
"They're still dealing with the death, the loss and everything that's just happened."
He pleaded with the offenders or anyone who knew anything about the stabbing to speak to police.
Mr Walter-Benedito said 17-year-old Augustine was a quiet person who would not have been looking for trouble.
"He was a real genuine guy, in the wrong place at the wrong time."
There had been "tremendous support" from Augustine's acting headmaster, teachers, and friends at Auckland Grammar School.
Augustine was eligible for Grammar despite living out of its zone because two of his brothers studied there.
He had wanted to be a physical education teacher or a policeman once he finished school.
"He had a lot of dreams," Mr Walter-Benedito said. "He wanted to buy a house as well."