“Five years I think is just really not enough when I’ve got a life sentence myself and I’ve lost my son.
“I loved him, he was my boy. He had his problems but so does everybody.”
During sentencing, Justice Lesley Taylor said Giannioudis hadn’t sold any heroin on the day of the killing as it was a rainy day, when Mr Cartwright and his partner appeared.
“After a brief interaction, you produced a knife and stabbed him once in the chest,” Justice Taylor said.
“After being stabbed, he walked across the street, carrying a washing basket in a normal fashion, and did not begin to stumble until he reached the other side.”
Unsteady Mr Cartwright, with blurred vision, was helped by passers-by.
En route to hospital, he went into cardiac arrest and lost consciousness.
He died that evening from a haemorrhage secondary to the stab wound, which was 12cm deep.
Meanwhile, Giannioudis, who claimed she did not realise the severity of Mr Cartwright’s injuries, went home to complete a heroin deal from her Collingwood apartment.
She was arrested in her car the following morning.
Giannioudis and Mr Cartwright had an altercation at a shopping centre a few months prior and had exchanged aggressive text messages.
She also believed Mr Cartwright had written aggressive graffiti outside her apartment.
“The lives of Mr Cartwright’s family will never be the same again,” Justice Taylor said.
She added Giannioudis had a traumatic childhood and suffered abuse, mental illness with borderline personality disorder, and drug addiction – and had ended up using $400 worth of heroin a day.
A doctor said her “hyper-aroused state” contributed to her impulsivity.
Giannioudis, who has a criminal history for violent, drug and property-related crimes, has already spent 478 days in jail.