Police investigating the fatal shooting of a man in Hamilton on Friday evening are yet to find a weapon.
Michael Thompson, who was 29, died in hospital after being shot at close range.
Two 17-year-olds have appeared in the Hamilton District Court following the shooting.
Last night the Armed Offenders Squad arrested one of the young men and the second gave himself up to police earlier today.
Tyson-Tainui Rukuwai Te Tomo is charged with murder.
Mana Williams, who was arrested last night, is facing three charges: threatening to kill, possession of an offensive weapon and causing grievous bodily harm.
Both have been remanded in custody to appear in the High Court next month.
Detective Inspector Karl Thornton said the police still had a lot of work to do including a search of the area.
"We would ask local residents to be vigilant and report anything unusual that they do find."
Mr Thornton also said further charges were possible.