A New Zealander who helped carry two Queensland drug dealers locked in a toolbox to their deaths has been sentenced to 12 years' imprisonment.
Webbstar Latu, 36, pleaded guilty in the Brisbane Supreme Court on Friday to the manslaughter of Cory Breton, 28, and Iuliana Triscaru, 31, south of Brisbane in 2016.
He is one of seven men and a woman charged over the killings.
Mr Breton and Ms Triscaru were lured to a Kingston apartment complex on January 24, brutally tortured and beaten for hours over a photograph of the group's alleged leader on a mobile phone.
They were bound and forced into the toolbox at knifepoint before it was dumped in the waterway alongside the Logan Motorway.
Their decomposing bodies were discovered 18 days later when police dredged the large metal box from the bottom of Scrubby Creek dam.
While Latu was not involved in torturing the pair, he delivered the toolbox to the unit and loaded the box with the dealers trapped inside on to a vehicle.
While others disposed of the bodies, Latu stayed at the apartment and helped clean the crime scene.
"You knew that the killing of two unfortunate victims was a probable consequence of joining the unlawful purpose of detaining those individuals," Justice David Boddice said.
"Your involvement, however, was significant criminality. While at that unit, you were obviously aware that these people were being held against their will in circumstances where they sustained significant injuries."
The father of two had turned to drugs after the breakdown of his marriage, the court was told.
Latu has been in custody since February 2016 and has reconnected with his family and his faith.
Justice Boddice sentenced Latu to 12 years' imprisonment. He will be eligible for parole after serving 80 per cent of the sentence.
Latu is likely to be deported after completing his jail time.