One of the two surviving children of a horror attack in the Blue Mountains has died in hospital.
The one-year-old, whose gender has not been revealed, died from their injuries while in hospital, NSW Police confirmed on Thursday night.
The baby was allegedly stabbed alongside their two siblings, aged five and three, by their mother, who cannot be named for legal reasons, in Valley Heights on Sunday.
A pair of cyclists had spotted the distressing scene on a quiet road and immediately stopped to perform first aid.
The five-year-old boy died at the scene while the younger siblings were rushed to hospital in critical conditions.
Their mother, who cannot be named for legal reasons, is accused of attacking the children while they were strapped in their carseats before attempting to take her own life.
She appeared before Penrith Local Court on Tuesday via videolink from her bed at Westmead Hospital and was formally charged with murder and two counts of attempted murder.
One of the attempted murder charges is expected to be upgraded following the one-year-old’s death.
One of the two surviving children of a horror attack in the Blue Mountains has died in hospital
The mother was refused bail and ordered to return to court on November 20.
The children’s distraught father, along with his extended family, has remained at the hospital supporting his children since the alleged attack.
A source close to the family told the Daily Mail the man was completely blindsided by news of his wife’s alleged attack on their three children.
‘It is so difficult to understand and it has been very confronting for him,’ they said. ‘The family is shaken, everyone is shaken.
‘He has been at the hospital taking care of the kids every day and we believe one of them went for surgery yesterday, that was the plan.
‘We are waiting now to hear how that went.’
The family member revealed the father moved to Australia from Kenya in 2013 to continue studying biochemistry.
He met his wife, also of Kenyan heritage, after he arrived here and they later married in Australia.
The one-year-old, whose gender has not been revealed, died in hospital after allegedly being stabbed by their mother on Sunday
As far as they were aware, there had never been any problems within their relationship.
It is understood the father, who was at work, thought his wife was taking their children out for a picnic.
Around 1pm on Sunday, the mother stopped her car on the side of the road next to the entry of the Valley Heights Waterfall track.
It is not known if she had planned to walk to the popular swimming hole with the children, but police say she had no previous links to the Blue Mountains area.
NSW Police Deputy Commissioner Peter McKenna described the scene confronting officers as ‘barbaric’.
‘When you’re using knives, or edged weapons … it’s actually quite barbaric,’ McKenna said.
‘People cut people, it’s actually very confronting.
‘Whenever there are children, it doesn’t get worse than that.’
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