Snapshot of Qld's toolbox murders case

WHO

* The bodies of drug dealers Cory Breton, 28, and Iuliana Triscaru, 31, were found in a toolbox submerged in a lagoon south of Brisbane more than two weeks after being killed on January 24, 2016

* Eight people - seven men and one woman - were charged and convicted over the murders in four separate hearings

* Stou Daniels, Davy Malu Taiao, Trent Michael Thrupp and Tuhirangi-Thomas Tahiata were found guilty of murder and torture

* Waylon Ngaketo Cowan Walker, Webbstar Latu, Tepuna Tupuna Mariri and Ngatokoona Mareiti guilty of manslaughter

* All involved were dealers or users of illegal drugs.

ARRESTS:

* February 11, 2016: Daniels, Taiao, Thrupp, Tahiata, Latu and Mareiti are charged with the murders

* February 16, 2016: Kingston man Mariri becomes the seventh person charged

* September 1, 2017: Walker extradited from New Zealand becomes the eighth person charged

* WHO DID WHAT:

* Mareiti, a mother of seven, helped clean a Brisbane unit and heard the pair screaming from inside the toolbox and failed to call for help

* Tahiata helped carry the toolbox to a utility and dump it in the lagoon

* Mariri helped torture the pair and force them into the toolbox that he sat on to stop them from escaping.

* Latu loaded the toolbox on the utility and helped clean the crime scene

* Walker was aware the pair had been detained but did not participate in the murders

* Daniels, Taiao, Thrupp and Tahiata were found responsible for murder and torture.

TRIAL

* The prosecution said Daniels was the ringleader who became paranoid after learning of a photograph and feared he was being set up. The victims were lured to a Kingston unit, tortured, assaulted and bound and shut in the toolbox submerged in the Scrubby Creek Lagoon

* The defence said key witnesses in the crown case had mental health issues with a history of drug and alcohol abuse and should not be considered reliable.

JUDGMENT

* Justice David Boddice said the "dreadful" acts of psychological torture were "unspeakable evil of the worst kind" showing a complete lack of humanity.

SENTENCES

* Daniels, Thrupp, Taiao and Tahiata sentenced to life - all must serve 30 years.

* Walker and Latu 12 years, Mariri 13 years and Mareiti nine years.