Warner said police would still like to speak with anyone who has information regarding Eli's death and would like to thank those who have already come forward.
"We continue to ask anyone who was in [the] vicinity of Old Highway between 5pm and 9pm on Sunday night to make contact with the investigation team."
Police are also seeking dashcam footage from anyone who was driving through the area at the time.
"We are interested in receiving information about any vehicles that were in the area," Warner said.
A nearby resident to the property, who did not want to be named, told the Bay of Plenty Times they did not hear anything on Sunday night because it was "wet and windy".
They were only alerted to the incident when the police went to their house on Monday, asking if they knew anything.
The resident said they were "absolutely concerned" a homicide had happened in their neighbourhood.
"A young guy that's lost his life - that's sad."
Police can be contacted via 105, quoting file number 220613/3065.
Information can also be provided anonymously via Crime Stoppers on 0800 555 111.