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 on April 13, that killed six and injured a dozen more.

On Sunday, she gathered with tearful mourners at a moving 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.

Inspector Amy Scott (left) gathered with tearful mourners at a sombre candlelight vigil to remember those killed at Westfield Bondi Junction last Saturday

Inspector Amy Scott (left) gathered with tearful mourners at a sombre candlelight vigil to remember those killed at Westfield Bondi Junction last Saturday

Thousands gathered at at Dolphin Court at Bondi Beach for a sunset vigil on Sunday in honour of those killed in the Westfield massacre

Thousands gathered at at Dolphin Court at Bondi Beach for a sunset vigil on Sunday in honour of those killed in the Westfield massacre

Mourners took a minute of silence to remember the six innocent lives lost in the Westfield massacre

Mourners took a minute of silence to remember the six innocent lives lost in the Westfield massacre 

The sunset vigil (pictured) heard from New South Wales Premier Chris Minns and Prime Minister Anthony Albanese

The sunset vigil (pictured) heard from New South Wales Premier Chris Minns and Prime Minister Anthony Albanese

Thousands gathered at the sunset vigil and held a one-minute silence to honour those lost.

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

She chased down the knifeman and shot him dead 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.'

Inspector Scott (pictured hugging a vigil attendee) shot knifeman Joel Cauchi during his attack last Saturday

Inspector Scott (pictured hugging a vigil attendee) shot knifeman Joel Cauchi during his attack last Saturday

Hero cop, Inspector Amy Scott (pictured centre), was met with hugs from her colleagues as she arrived at the vigil for the victims of the attack

Hero cop, Inspector Amy Scott (pictured centre), was met with hugs from her colleagues as she arrived at the vigil for the victims of the attack

Sunday's vigil, organised by the state government and Waverley Council, was attended by thousands of mourners

Sunday's vigil, organised by the state government and Waverley Council, was attended by thousands of mourners

There were emotion scenes at the vigil where attendees held candles to hour the victims

There were emotion scenes at the vigil where attendees held candles to hour the victims

'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.

The six victims who were killed (from top left):  Yixuan Cheng, Ashlee Good, Pikria Darchia, Jade Young, Dawn Singleton and Faraz Tahir

The six victims who were killed (from top left):  Yixuan Cheng, Ashlee Good, Pikria Darchia, Jade Young, Dawn Singleton and Faraz Tahir

Prime Minister Anthony Albanese (pictured) expressed his sympathy for the victims' loved ones

Prime Minister Anthony Albanese (pictured) expressed his sympathy for the victims' loved ones

NSW Premier Chris Minns (left) lights a candle to honour the victims of the Bondi Junction tragedy at Bondi Beach

NSW Premier Chris Minns (left) lights a candle to honour the victims of the Bondi Junction tragedy at Bondi Beach

Attendees of Sunday's vigil (pictured) were asked to bring their own candles to the event at Bondi Beach

Attendees of Sunday's vigil (pictured) were asked to bring their own candles to the event at Bondi Beach

Counsellors and support services have been made available to emergency responders who have been on scene.

The vigil follows an anxiously-awaited updated on the recovery of Ms Good's nine-month-old baby girl injured in the attack and rushed to emergency surgery. 

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.'

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. 

Counsellors and support services have been made available to emergency responders who were at the horror scene. 

Crowds of young people were seen embracing and wiping away tears as the vigil got underway (pictured, NSW Police officers at the vigil)

Crowds of young people were seen embracing and wiping away tears as the vigil got underway (pictured, NSW Police officers at the vigil)

Hero cop, Inspector Amy Scott (pictured second left) chased down the lone attacker and shot him before he could injure anyone else

Hero cop, Inspector Amy Scott (pictured second left) chased down the lone attacker and shot him before he could injure anyone else

The vigil (pictured) followed a positive update on the health of nine-month-old baby Harriet who was stabbed during the attack

The vigil (pictured) followed a positive update on the health of nine-month-old baby Harriet who was stabbed during the attack

The Westfield Bondi Junction stabbing, which saw six innocent lives lost, shocked the whole of Australia (pictured, people leaving flowers at the memorial site)

The Westfield Bondi Junction stabbing, which saw six innocent lives lost, shocked the whole of Australia (pictured, people leaving flowers at the memorial site) 

Crowds of young people were seen embracing and wiping away tears as the vigil got underway (pictured, a woman crying at the event)

Crowds of young people were seen embracing and wiping away tears as the vigil got underway (pictured, a woman crying at the event)