A woman stabbed her boyfriend to death with a large knife after assuming he killed his cat, and has been imprisoned for 12 years.
Rachel Impson, 42, was found guilty of murdering Michael & # 39; Mick & # 39; Insley, 39, at the Picnic Island in Windang in the Illawarra Lake region, one night in October 2014.
He had appeared outside his tent, without invitation and without warning.
Rachel Impson has been incarcerated for 12 years after stabbing her boyfriend in the back with a large knife.
The significant demonstration of Impson's mental illness and the death of his cat triggered his "high emotional state".
His lawyer argued without success that his murder of Mr. Insley was an act of self-defense. Instead, the act was due to bipolar affective disorder and borderline personality disorder.
Impson admitted killing Mr. Insley and was jailed by Judge Michael Walton in the Supreme Court on Friday.
Mr. Insley's sister, Linda Reynolds, present outside the courthouse, said the family was happy with the 12-year sentence, although "a certain amount of time will not suffice … it will eventually come out."
Distressed by the murder of her own brother, she said she did not believe "a single word" of a written apology that Impson had written for Reynolds.
Impson's murder was related to his bipolar affective disorder and his borderline personality disorder.
The victim's sister, Linda Reynolds, said the family is happy with the phrase, but that "it will never be enough."
Impson and Mr. Insley had only known each of them for seven weeks before executing the sudden murder and had problems on the way to the stabbing, where he asked viewers to contact the police.
When Impson received a call from the RSPCA shelter saying that her cat was found dead, she immediately assumed that Mr. Insley had killed her pet.
& # 39; I know you killed Angel, take care of your back c *** & # 39;, sent him a text message.
Impson denied killing Mr. Insley out of anger during his sentencing hearing in August.
Instead, she justified her act by saying that she was scared, as she suddenly appeared outside her store without being invited.
Judge Walton established a maximum term of 18 years in prison.
The murder took place in an isolated area of Windang & # 39; s Picnic Island in the Illawarra Lake region, one night in October 2014.