Ricky John Izard showed 'callous disregard' for victim Bradley Breward, faces 'significant' time behind bars

Ricky John Izard, 28, of South Launceston, attended a sentencing hearing in the Supreme Court in Launceston on Monday after pleading guilty to manslaughter, aggravated burglary and perverting the course of justice.

He will be sentenced on Friday.

The court heard Izard had accepted he would receive a "significant custodial sentence" for his role in the crime, which included threatening Mr Breward via messages and helping Jones to track him down over the alleged theft of a four-wheel-drive.

On the morning of January 1, 2017, Izard armed himself with a screwdriver and wore a balaclava as he and Jones entered a unit in Newnham where Mr Breward, 22, was asleep on a couch.

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Izard kept another occupant at bay in another room with the screwdriver while Jones tortured Mr Breward. Izard then joined him and helped to restrain the victim who Jones suffocated with a plastic bag before the two carried him to a ute.

Izard travelled with Jones to Latrobe and ultimately Lake Eugenana where the body was disposed of.

In a police interview in 2017, Izard lied about Jones' intentions, his relationship with Jones, the extent of his own role in the killing and the reason for buying items from K-mart intended to dispose of the body.

Defence counsel Mark Doyle said Izard accepted the mistakes he made throughout the offending, and his eventual co-operation with police, including leading them to the body, could not be dismissed.

"Mr Izard hopes that the resolution of this matter by him pleading guilty offers some solace to the family, but he understands that as he sits here before your honour, he is aware that nothing he can do can at this stage repair the harm he has caused for the wrong he has done," he said.

Prosecutor Daryl Coates said the crime involved the planning of "significant violence" and there was "no evidence of remorse" from Izard.

"The disposal of the body ... showed callous disregard for the deceased and his family," he said.

"At no stage did he withdraw from participating in the unlawful agreement."

Izard, a former employee of Jones, was "open to influence" given the power imbalance in their relationship, Mr Coates said.