A Southern Tasmanian woman has been jailed for eight-and-a-half years for her involvement in the 2016 death of 51-year-old mother Michelle Meades.
Ms Meades was found gagged and bound in a cupboard of a burnt-out unit at Clarendon Vale after a brutal assault.
Kylie Jane Hack, 36, of Mornington, pleaded guilty to manslaughter in August.
Justice Helen Wood said Hack was at the unit with two other men on the night of Ms Meades' death.
She said an argument had been sparked over a drug deal and Hack was encouraged by the men to initiate an assault upon Ms Meades.
Justice Wood said Hack punched the woman twice, slammed her head against the floor of the unit, and strangled her.
She said Ms Meades was stabbed in the neck 20 times with a pair of nail scissors by one of the two men.
Three of these stabbings had hit the woman's jugular vein.
The woman was also hit on the back of the head with a golf club.
Justice Wood said Hack had locked herself in the bathroom after she became disturbed by the assault and was told Ms Meades had been killed once she rejoined the men.
A pathologist during the trial was unable to say whether the woman was dead when she was gagged, bound and wrapped in a bed spread and placed in the bathroom.
The body was later moved to a bedroom cupboard.
Justice Wood said Hack had later taken Ms Meades' handbag and twice unsuccessfully tried to buy food and alcohol with one of the victim's bankcards.
She said Hack and another man later set the bathroom, bedroom and lounge room alight to try and cover up the crime.
The Tasmanian Fire Service attended the fire and police investigators were later called in.
Ms Meades' body was not discovered until days later, however.
Justice Wood said Hack had consistently lied to police over her involvement in the crime.
She said while Hack did not inflict any of the fatal injuries, she had instigated the violence against Ms Meades.
Justice Wood said Hack had endured a dysfunctional childhood, which was punctuated with violence, abuse and neglect.
She said this had possibly played a part in the development of alcohol and drug abuse later in life.
Justice Wood said Hack had demonstrated a lack of remorse through the theft of Ms Meades' handbag and by misleading police.
Hack's sentence was backdated to September 20, 2016. A non-parole period of five-and-a-half years was imposed.