Warning: This article contains details that may disturb some readers.
Harrowing footage taken by self-confessed "psycho" Mert Ney mere moments after he murdered a 24-year-old woman has been shown in a Sydney court.
Michaela Dunn, who was a sex worker at the time, was stabbed to death by Ney shortly after he entered her Clarence Street apartment on August 13, 2019.
Ney, 22, was later restrained by bystanders after rampaging through Sydney's CBD, seriously injuring another woman with a kitchen knife.
He pleaded guilty to murder and wounding with intent to cause grievous bodily harm.
On Monday, Ney attended his sentence hearing in the Supreme Court of New South Wales. Michaela's friends and family were among those in attendance.
During the hearing, disturbing videos taken by Ney on the popular app Snapchat moments after he murdered Michaela were played to the court.
"Look at my f***ing hands. Brother, I'm not lying," he says in the footage, his hands covered with Michael's blood.
"Look at my f***ing pants, my f***ing shoes.
"I'm not lying bro, I actually f***ing did it."
Ney then sent the short clip to an acquaintance, typing: "I'm f***ing psycho."
"I was laughing bro. The fear," he continued.
In other clips, he is heard saying "Allahu Akbar" and "f*** infidels". He then posed next to Michaela's body, smiling and bragging about the murder.
During the hearing on Monday, Michaela's mother, Joanne Dunn, read aloud her heartbreaking victim impact statement, recalling the night she found out her young daughter had been murdered.
"I know our house was quiet, very very quiet. No tears, no shouting - just numbness," Dunn said, as reported by local media.
"No parent should ever have to hear those words... your daughter has been murdered."
Dunn expected Michaela would be home for dinner at 7pm. After not hearing from her daughter two hours later, Dunn decided to drive to her unit in Sydney's CBD.
She then received a call from her husband, who said two detectives had arrived at their home to deliver the horrific news.
"I don't want an angel. I want her here in person. I miss her beautiful eyes looking at me, I miss the touch of her hands, I miss our conversations and even our arguments," Dunn said.
Shortly after Michaela's murder, Ney was filmed running through Sydney's CBD brandishing a bloodied kitchen knife. Lin Bo was seriously wounded during Ney's rampage, the 22-year-old stabbing her from behind. Bystanders eventually managed to restrain the crazed man, using a chair and a crate to pin him to the ground.
Bo's victim impact statement was also read aloud during Monday's hearing. She said she is still "hugely afraid" of returning to the city.
Taking the stand in Ney's defence, his sister told the court he had pleaded guilty to save Michaela's family from more suffering. She said her brother also did not want to waste any more taxpayers' money.
Ney reportedly had a long history of mental illness prior to the stabbing.
The sentence hearing will resume on Tuesday.