Eight people have been committed to stand trial for the Logan bodies-in-the-toolbox murders.

The seven men and one woman are accused of killing Cory Breton and Iuliana Triscaru during a dispute over a drug debt in January 2016.

Trent Michael Thrupp, Tuhirangi-Thomas Tahiata, Webbstar Latu, Ngatokoona Mareiti, Davy Malu Junior Taiao, Tepuna Tupuna Mariri, Stou Daniels and Waylon Ngaketo Cowan Walker will appear before a jury at a later date.

Following a two-day hearing in Brisbane, deputy chief magistrate Terry Gardiner deemed there was enough evidence for them all to be committed to stand trial.

It came despite protests from barristers for three of the accused, who argued they had no case to answer on a charge of murder.

John Fraser said it would be open to a jury to consider a lesser charge of manslaughter for Mariri and Daniels based on some of the evidence that they were in on a plan to scare Mr Breton and Ms Triscaru.

But he and Mariri’s barrister Timothy Ryan said there was nothing to suggest the pair knew what was going to happen next.

The prosecution claim Mr Breton and Ms Triscaru were beaten at a Kingston unit before they were bound and stuffed in a two-metre-long toolbox.

It’s alleged they were then driven to a dam, where they were shot in the head, and the box, which had holes drilled in it to help it sink, was thrown in the water.

Mr Fraser accused Thrupp and Tahiata of going on a “frolic on their own” that went “way outside the scope” of what the rest of the group had spoken about.

Walker’s defence barrister said his client was only in the unit for a “very brief period of time” and there was no evidence to suggest he joined in on the plan.

Mr Gardiner conceded the case against Walker was “somewhat weaker” but he maintained there was still enough evidence for all to be tried for murder.

Chad Galbraith claimed earlier in the day that Latu confessed to him while the pair were in custody in February 2016.

But during a fiery cross-examination, Mr Galbraith finally conceded it was possible he was mistaken when he claimed in his statement that Latu told him he was there when the toolbox was allegedly thrown into the water.

All eight were remanded in custody and will go on trial in the Brisbane Supreme Court at a date to be decided.

-AAP