A judge has declared a mistrial in the murder case against four men accused of killing two people whose bodies were found in a toolbox dumped into a south Brisbane lagoon.
Stou Daniels, Davy Malu Junior Taiao, Trent Michael Thrupp and Waylon Ngaketo Cowan Walker are charged with murdering Cory Breton and Iuliana Triscaru at Kingston in Logan, south of Brisbane, on January 24, 2016.
Daniels, Taiao and Thrupp are also accused of torturing the pair.
It is alleged the victims were lured separately to a Kingston unit, assaulted and bound with tape before being put in the toolbox, prosecutor David Meredith told the jury in his opening.
The box was put onto the back of a ute and dumped in Scrubby Creek.
Police divers found the bodies in the box - weighed down by concrete blocks and tyres at the bottom of the lagoon - on February 11.
They were so decomposed doctors could only conclude the pair died either from asphyxiation before being put into the water, or from drowning in the water.
The men pleaded not guilty to the murder and torture charges as the scheduled four-week trial in the began in the Queensland Supreme Court on October 20.
At the start of the third week of the trial on Monday, Justice David Boddice declared a mistrial when a witness was unable to continue giving evidence.
The jury was dismissed, and the date of a new trial is yet to be fixed.
