Biggins' family is now being supported by police and victim support services.
Authorities yesterday announced that a homicide investigation was now underway after what initially appeared to be a fatal car crash reported in Ōkaihau, Northland, on Monday evening.
Emergency services were called to Imms Rd shortly before 8.30pm that night after reports of a crash.
A man who was in the vehicle was pronounced dead at the scene despite efforts to save him.
Officers involved in the investigation are said to be speaking to children as young as 12 years old, 1 News reports.
Johnston said yesterday that inquiries into the crash had since established the death was suspicious.
The car was still at the scene this morning while the police examination continued.
Police are appealing to members of the public with any information that may help in their investigation to contact authorities immediately.
Can you help? Contact Police on 105 or CrimeStoppers anonymous on 0800 555 111