At around two this afternoon we received multiple phone calls about a 21-year-old man from Marayong, in the vicinity of King Street armed with a knife and wearing a balaclava. Over the next six minutes ... there was terrifying carnage in that area. He stabbed a 41-year-old woman in the back ‐ it appears to be a random attack.

Three members of the public who can only be described as highest-order heroes, have engaged this 21-year-old man and have placed him essentially under arrest, even though he was brandishing a large butcher’s knife and was clearly dangerous.A number of other emergency services were in the vicinity and responded shortly after, and police put this individual in jug.

In the next 30 minutes an expanded scene of the crime unfortunately identified a 21-year-old woman ... deceased. All the available information we have at hand would link these two crimes.

Our counter-terrorist command immediately stood up and the joint CT team which includes police and state and fed agencies, have assessed all available info in relation to his crime and it is not currently classed as a terrorism based incident.

• Body of a female sex worker, 21, possibly known to the killer, Mert Ney, 21, later found with throat slashed in a CBD building


• Suspect was later captured by hero bystanders using chairs and a milk crate


• NSW Police have said the suspect 'may have ideologies related to terrorism', also a known wolf who may have escaped from a mental institution


• They alleged they found USB stick on him referencing the Christchurch attack


• But they added they had found no links between him and terrorist organisations