Amy Scott: Brave female cop who shot Westfield Bondi Junction killer dead is seen for the first time since the horror tragedy - as thousands gather for candlelight vigil

The lone policewoman who ended a mass knife attack by shooting down a deranged killer has appeared at a vigil for the massacre's victims.

Inspector Amy Scott fatally shot Joel Cauchi, 40, during his rampage at Sydney's Westfield Bondi Junction last Saturday, April 13, that killed six and injured a dozen more.

On Sunday, she gathered with tearful mourners at a sombre candlelight vigil to remember those who lost their lives.

Groups of young people were seen crying and clutching knitted teddy bears at Bondi Beach's Dolphin Court as the event began at 5pm.

The state government and Waverley Council organised the candlelight vigil to mourn the attack that shocked the nation.

Hundreds of people gathered at the sunset vigil and held a a one-minute silence to honour the dead.

Hero cop, Inspector Amy Scott, was met with hugs from her colleagues as she arrived at the event.

She chased down the lone attacker and shot him before he could injure anyone else.

Crowds of young people were seen embracing and wiping away tears as the vigil got underway.

The crowd heard from Prime Minister Anthony Albanese as he expressed his sympathy for the victims' loved ones. 

'We are with you as a community, as a country today, tomorrow and always,' he said.

New South Wales Premier Chris Minns also spoke at the event, noting Cauchi seemingly targeted women during the horrific stabbing.

'We will not be a state where a woman is forced to changed their behaviour,' he said. 

On Saturday the premier shared a similar message, saying: 'I think if we can stand together during the difficult periods, we can send a message that there are far more good people in this city than there are bad actors and there is evil.'

'Those that have lost loved ones have said unanimously that they can feel the community support behind them and that they know that they're not alone.'

Mr Minns said the vigil would be an opportunity to 'stand by those that have lost loved ones and remember those that have been killed'.

Among those killed in the attack was security guard Faraz Tahir.

Mr Tahir, who had come to Australia after fleeing persecution in Pakistan, was killed attempting to protect shoppers from Cauchi.

'He is not just a hero for us but the whole nation,' Ahmadiyya Muslim Youth Association national president Adnan Qadir said.

'We are here in large numbers to carry on Faraz's legacy by reflecting on his bravery, courage, and giving strength to our youth that they too must always be ready to serve others and, most importantly, this beautiful country.'

Five of the six people killed were women - Ashlee Good, 38, Dawn Singleton, 25, Jade Young, 47, Pikria Darchia, 55, and Yixuan Cheng, 27.

Counsellors and support services have been made available to emergency responders who have been on scene at multiple violent attacks in Sydney this week.

The vigil follows an anxiously-awaited updated on the recovery of a nine-month-old baby girl injured in the attack. 

NSW Health Minister Ryan Park announced baby Harriet had been discharged from hospital on Sunday revealing she would continue to receive treatment.

'In a positive development, I can confirm the child who has been receiving care at Sydney Children's Hospital following last weekend's tragic events at Bondi Junction has been discharged home,' Mr Park said in a statement.

'She continues to receive care from the expert clinicians at Sydney Children's Hospital.'

The baby's mother, osteopath Ashlee Good, 38, was one of six people killed during the horrific attack in Sydney's eastern suburbs last Saturday. 

Dawn Singleton, 25, Jade Young, 47, Pikria Darchia, 55, and Yixuan Cheng, 27, and security guard Faraz Tahir, 30, were the other five victims killed. 

Lone knifeman Joel Cauchi, 40, stabbed 12 more innocent shoppers during the terrifying rampage.

Ms Good and her baby were the first to be attacked with the desperate mother forced to hand her child to strangers to save her life. 

The NSW government and Waverley Council have organised a candlelight vigil to be held at 5pm at Dolphin Court at Bondi Beach on Sunday afternoon. 

The vigil involved a minute of silence and people were asked to bring their own candles.

'I think if we can stand together during the difficult periods, we can send a message that there are far more good people in this city than there are bad actors and there is evil,' NSW Premier Chris Minns said on Saturday.

'Those that have lost loved ones have said unanimously that they can feel the community support behind them and that they know that they're not alone.'

Mr Minns said the vigil would be an opportunity to 'stand by those that have lost loved ones and remember those that have been killed.'

Mr Tahir, who had come to Australia after fleeing persecution in Pakistan, was killed attempting to protect shoppers from Cauchi.

'He is not just a hero for us but the whole nation,' Ahmadiyya Muslim Youth Association national president Adnan Qadir said.

'We are here in large numbers to carry on Faraz's legacy by reflecting on his bravery, courage, and giving strength to our youth that they too must always be ready to serve others and, most importantly, this beautiful country.'

Counsellors and support services have been made available to emergency responders who have been on scene at multiple violent attacks in Sydney this week.  

Ms Singleton, 25, the daughter of multi-millionaire advertising guru John Singleton, was due to marry her high school sweetheart Ashley Wildey when she was stabbed.

Friends and police colleagues rallied around a shattered Mr Wildey and have barely left his side in the last week.

While it's still early days, friends said that he's a 'tough kid' and hope that he will eventually return to the force.

'His police mates have been very, very good – the boys brought around hamburgers, chips and Coke and have stayed with him, talking and making sure he knows he is supported,' a close family friend told The Daily Telegraph.

'They don't want to lose him. He is very good at his job.

'He has always wanted to help people. He is young, and I know he has helped crack some cases already.'

The friend added that Mr Wildey visited Ms Singleton's mum Julie on Wednesday to pay his respects.