Sydney stabber Mert Ney has revealed the woman he murdered asked him if he was okay in the moments before he took her life.
Ney painted Michaela Dunn's final moments in graphic detail at his sentence hearing in the Supreme Court.
The 22-year-old pleaded guilty to three charges including murder in October last year.
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Ms Dunn's mother Joanne was so distressed she left midway through his evidence.
Ney told the court Ms Dunn opened the door and when he sat on the couch asked him at least twice: "Are you okay?"
The killer told the court he took a knife out and "she screamed pretty loud".
When asked what happened next, he warned the court "it's pretty violent".
"Just started stabbing her in the neck to make her be quiet," Ney said.
"She grabbed my arms.
"I stabbed her everywhere."
He was asked by his barrister Belinda Rigg, SC, what he was thinking and why he did it.
"Just to make her be silent, I thought the cops were going to run in on me."
The court heard Ney was worried the police were after him because he had assaulted his sister.
After Ms Dunn died, Ney said he decided "this is the point of no return".
"I need to fully commit," he said.
When asked what he meant, Ney said "to being killed, there is no living now".
Ney said he only yelled "Allahu Akbar" on the street so that the police would shoot him.
Crown Prosecutor Craig Everson put to Ney that it was a planned "suicide mission".
"I have no views of extremist things," he said.
Ney appeared frustrated at the repeated reference to terrorism and asked to make a comment before his barrister asked for a brief adjournment.
The sentence hearing continues.
Readers seeking support and information about suicide prevention can contact Lifeline on 13 11 14.
