Ruatiti double homicide: Missing shotgun sought, locals urged to talk

Police are seeking information about an unaccounted for shotgun as part of a ongoing double homicide investigation in Ruatiti.

The investigation was launched on December 14 after Brendon and Trina Cole were found deceased at a rural property a day earlier.

On December 16, police said they were seeking 29-year-old Mitchell Cole in relation to the incident, and he should not be approached. Media reported at the time reported the deceased were his father and stepmother.

Ruatiti is located near the Whanganui National Park, around 21km southwest of Waimarino (National Park).

Today, police field crime manager Detective Inspector Gerald Bouterey said there were aspects of the investigation which could not be discussed but "significant work" was still ongoing.

As part of the inquiries, police have identified a semi-automatic shotgun which should have been at the address on Murumuru Rd, but was not located during the initial scene examination or subsequent searches.

"Police previously believed an occupant of the address had this shotgun in their possession; however, the firearm has still not been accounted for, and we are now seeking information on its whereabouts."

Bouterey said police believe the semi-automatic shotgun may have been altered to have the "end of the barrel cut down" and is "likely to have been discarded" in the Murumuru Rd, Parinui, or Ruatiti areas.

"Alternatively, it may have been left in or near a hut or rural structure."

Police asked locals who may find a firearm in these areas, or have any knowledge as to where it may be, to "not touch it" and "instead contact us immediately".

"In addition to this, if anyone has knowledge of firearms that belonged to the occupants of 470 Murumuru Rd and you haven’t spoken to police – please contact us."

Boutery also said the cooperation shown by the local community has been "invaluable" but some people were yet to speak to police.

"We know individuals who hold information that could assist the investigation have not yet spoken to police, and the information you hold could help provide answers to families who are grieving."

He urged those people to "reconsider" and contact police.

"Even information that may seem minor or significant could be critical in progressing this inquiry."

Boutery said police continud to follow all lines of inquiry and "carefully assess" information as it is received.

"We are committed to ensuring the safety of the wider community and at this stage, there is no information to suggest any ongoing risk to the general public."

Information could be provided via 105, either online or over the phone, or be provided anonymously via Crime Stoppers.