A Victorian ice-addicted mother who stabbed her mother-of-three housemate to death in a fight over $50 is struggling to accept she actually killed someone, a judge says.
Alicia Schiller, 27, was sentenced on Friday to at least 16 years behind bars after being found guilty of murdering ice-dealer Tyrelle Evertsen-Mostert in a drug-fuelled rage in 2014.
"Although you have always been willing to plead guilty to manslaughter, until relatively recently you blamed Ms Evertsen-Mostert for what occurred," Supreme Court Justice Elizabeth Jane Hollingworth told Schiller, who sat sullenly in the dock.
"You still seem to be struggling to fully accept that you have killed someone."
Schiller had been living temporarily in Ms Evertsen-Mostert's Geelong home when she came home one day to find $50 missing from her room.
Ms Evertsen-Mostert had taken the cash while Schiller was out in order to buy some ice, and intended to pay it back, the judge said.
When the 31-year-old came home, a furious Schiller, who had also consumed ice that day, jumped on Ms Evertsen-Mostert's bed and stabbed her three times with a short kitchen knife.
The final blow pierced her heart.
Justice Hollingworth said she could not be convinced Schiller entered the bedroom intending to inflict serious injury and said the crime was in the mid-range for murder.
In determining the sentence, the judge said she took into account Schiller's lengthy criminal history, long-standing mental health problems and illicit drug use, and years of chaotic and unstable living.
The court heard Ms Evertsen-Mostert's family miss her greatly, including her four-year-old son, who was present in the home when she was murdered.
"They struggle to make sense of how somebody they loved could lose their life over something so trifling," Justice Hollingworth said.
Members of the family were present in court but declined to comment to the media.
Schiller's mother and sister also attended court and cried when they heard the sentence.