The sister of a young woman brutally stabbed to death by a crazed knifeman has spoken about the tragedy for the first time.
Michaela Dunn, 24, was killed in an apartment in Sydney, Australia, in August 2019 by Mert Ney, 23.
Ney was seen brandishing a knife and running along a street before being encircled by members of the public and hauled to the ground by three British men.
Michaela was later found with her throat slit.
Speaking publicly about the incident for the first time, the victim’s sister Emily told 7NEWS: “Often now people ask me ‘do you have any siblings?’ and I never know how to answer that question.
"‘Oh, well I did.’ But I hate talking about Mickie in the past tense.
"I think that part of the tragedy is knowing she could have done anything, but we’ll just never know what she would have gone on to do.”
The pair were four and a half years apart and Michaela had been travelling through Europe after getting the "travel bug".
According to reports, Michaela was a sex worker when she was fatally stabbed and had dreams of becoming a fashion designer.
Ney had a booking with her in the Clarence St. apartment where he killed her.
In the hours following his arrest, video footage emerged of the criminal bragging to a friend about the murder.
In other footage, he is reportedly heard saying “Allahu Akbar” and “f*** infidels”.
He was later sentenced to 44 years in prison with a minimum of 33 years before he can be eligible for parole.
Manchester brothers Luke and Paul O'Shaughnessy and Lee Cuthbert were hailed after holding the suspect until police arrived.
A joint statement by leading sex workers associations in Australia at the time said: “Michaela Dunn was a woman, a community member, and a whole individual who will be missed and mourned.
"There is significant stigma and discrimination experienced by sex workers and too often our identities, lives and experiences are reduced to our occupation.
"Sex industry workers are worthy of the same rights and protections as those working in other professions.
“They are equally deserving of empathy and consideration when befallen by tragedy."
Her mother told 9News she was a "beautiful, loving woman who had studied at university and travelled widely".
