Bodies-in-a-box killings: Police charge 7th person

A seventh person has been charged with the bodies-in-a-box murders of Logan pair Cory Breton and Iuliana Trescaru.

Police captured Tepuna Tupuna Mariri, 25, on Tuesday afternoon, just as they identified him publicly as the outstanding person they wished to speak to about the deaths.

Mr Mariri was a resident of the Kingston unit where Mr Breton and Ms Trescaru were allegedly bashed over a drug debt, before they were driven to a nearby dam in a metal tradesman's box, shot dead and dumped in the water on the night of January 24.

Six others, five men and a 36-year-old mother-of-seven, were all charged with two counts of murder last week.

All have been remanded in custody.

Mr Mariri has also been charged with two counts of murder and is due to front Brisbane Magistrates Court on Wednesday morning.

Mr Breton, 28, and Ms Trescaru, 31, were both reported missing in late January, along with their acquaintance Lelan Harrington, 23.

Police appealed for public information to help locate the trio in early February.

A couple of days later, Mr Harrington showed up alive, and after he spoke with police, two crime scenes were established, one at Mr Harrington's Kingston unit, the other a nearby vacant lot.

The search for the missing Mr Breton and Ms Tescaru focused on a dam on the vacant lot, where, early on February 11, police divers found a metal toolbox submerged under the water.

The bodies of the missing pair were found inside.

Anyone with information contact Crime Stoppers on 1800 333 000 or at crimestoppers.com.au

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