Hero shopper Ryan Bramble relives the terrifying moment he looked Westfield Bondi Junction killer Joel Cauchi in the eye after he joined a group of vigilantes to try to stop the chair-wielding knifeman

A heroic shopper caught up in the Westfield Bondi Junction attack has recalled the moment he joined others to try to help police subdue the knifeman.

Ryan Bramble was shopping in Zara on Saturday with a friend when they heard women’s blood-curdling screams as Joel Cauchi, 40, began his attack.

“I just heard women screaming and screaming,” he told 2GB on Monday.

‘We looked at the front page and just saw hundreds of people running.’

He said he was only a few meters away from Cauchi and made eye contact, but the knifeman did not seem interested in him.

“This guy walks around the corner, just really casual… and I notice a massive Rambo knife in his hand,” Mr Ramble said.

‘I look him in the eye. He looked at me, we were only a few feet apart, but he looked at me and just kept going. Just a really insane look on his face.’

It was at that moment that the hero police officer Amy Scott came running in from the street and asked where the perpetrator was and what he looked like.

Sir. Bramble said customers around him made the quick decision to grab chairs and bollards and followed the officer as back-up.

2GB host Ben Fordham told Mr Bramble on Monday morning that he and others were putting themselves at risk.

“I didn’t really feel that way at the time. I just wanted to get the bugger, said Mr Bramble.

The hero shopper relived the moment at Sunrise, recalling the moment Cauchi froze when the group and the police officer caught up with him.

“He went straight to aim straight back at us – straight at the female police officer and myself and the man in the white shirt,” he said.

“And when he did, she just shot him three times right in the chest. Just so accurate.’

Business owner Bill Mohana opened up about the terrifying moment the massacre unfolded.

He was saying hello to the ‘girls’ in his partner’s salon on level five of the mall when he turned to see ‘people stomping’ and a ‘broken glass bottle’ and a trail of blood.

Speaking to Nine, Mr Mohana described the confusion he felt in the initial moments of the crisis before he quickly acted to hide himself and others in the shop.

“I quickly closed the front of the store, locked everyone in, turned up the lights, turned everything off, put everyone in the back room,” he said.

‘I helped an elderly man who was like ‘let me in’. I quickly put him in, shoved them all in the back, closed the door, told everyone, ‘turn off the lights’ to pretend or act like we were no longer in the store and the store was closed.’

Mohana said the wait for news was ‘terrifying and terrifying’.

“As I had already seen the bodies on the floor and when I heard the shots, I thought, oh, we’re next,” he said.

He said his partner, Victoria Kerr, has not slept for two days.

NSW Premier Chris Minns – who flew home from a family holiday in Tokyo on Saturday – spoke to the 2GB radio station on Monday morning.

“I received a text from my chief of staff saying to call me as soon as possible … which I thought was unusual,” he said.

‘I left (my family) at the airport and was able to get a flight straight away, I just turned around and jumped on a plane and came back.’

He said Mr Cauchi’s only interaction with police in NSW was a “movement order” while he was sleeping rough in The Rocks.

Australian Red Cross Lifeblood has issued an urgent appeal for more blood donations following the attack, which hospitalized twelve people, many of whom suffered significant blood loss.

At least 50 witnesses made reports to NSW Police on Sunday following the incident as investigators continue to piece together how the horrific incident unfolded.

Six people – including five women and a male security guard – were killed by Joel Cauchi, 40, during a stabbing at Bondi Junction Westfield on Saturday.

The victims include mother Ashlee Good, 38, the 25-year-old daughter of millionaire businessman Dawn Singleton, 47-year-old mother-of-two Jade Young, Pikria Darchia, 55, and 30-year-old security guard Faraz Tahir.

A further 12 people were stabbed in the attack, with one woman fighting for her life, and five more people remained in intensive care on Monday morning.