Rachel Galleghan will never forget the day when her beloved 16-year-old son was bashed and left to die alone on the floor in nothing but his underwear.

In the NSW Supreme Court on Friday, Kayla Dawson – who instigated the assault – and Richard Sione, who started the bashing, were sentenced to decades in prison for the teen's murder.

Galleghan said losing Jason has forever changed her life and caused her "pain, trauma and heartbreak".

READ MORE: Sydney doctor charged over alleged sexual assault of two patients

"I would give anything to hear Jason's voice, his laugh … and just being his mum," she said in her victim impact statement.

Dawson lured Jason – who she suspected of stealing her Apple AirPods – to her home, where he was attacked by Sione and subsequently by a group of teenagers who referred to the much older man as "uncle" or "dad".

The 16-year-old died due to his injuries two days after the assault.

For her role in orchestrating the plan to attack Jason, Dawson was sentenced to 20 years in prison with a non-parole period of 13 years.

The court was told Dawson and Jason were friends, and the 16-year-old felt bad for Dawson after she fell pregnant and lost all her friends.

"Jason helped Kayla during a difficult time in her life," Galleghan told the court.

"Kayla orchestrated the attack on Jason … she recorded the assault and laughed."

In his decision, Justice Robert Allan Hume accounted for the 22-year-old's intellectual disability and troubled upbringing.

"She lacked the capacity to reason as an ordinary person might … this lessens her moral culpability," he said.

Sione's defence attempted to have Justice Hume take into consideration his traumatic upbringing, mental health issues and history of substance abuse.

However, the judge determined that Sione's moral culpability was undisputed.

"I am prepared to accept that there are some adverse events that occurred in Mr Sione's life," he said.

"To what degree, I am not sure."

The 34-year-old was sentenced to 32 years with a non-parole period of 24 years.

Galleghan was visibly emotional and shaken when the sentences were read out, leaving the courtroom numerous times as the violent details of her son's murder were recounted.

In her statement, Galleghan urged the judge to sentence Sione and Dawson to life imprisonment.

"Words cannot express how much I loath Kayla. Jason trusted her," she said.

"[Sione] must be punished … his lack of remorse shows how severely he must be punished for his crime."

Eleven people aged between 13 and 29 were charged after parts of the murder were filmed.

One teenager was previously sentenced to 15 years in prison over his involvement in the bashing.

Queensland MP Darren Zanow has been diagnosed with an incurable brain disease, forcing him to resign at this year's state election just months after winning his seat at a by-election.

The Liberal-National Party member for Ipswich West announced today that he has microvascular ischemic disease, a "variety of changes in the small blood vessels of your brain" which can lead to dementia or stroke depending on the severity, according to the academic medical centre Clevland Clinic.

Zanow, who is 52 and only joined parliament after winning a 17.6 per cent swing in his traditionally safe Labor seat in March, said that in people his age, the condition is "likely to signal that a more rapid onset has begun," and further medical testing has "proven that to be true".

READ MORE: More than 3000 jobs at risk as mining giant shuts down mega operation

"I have been given devastating news, I have been diagnosed with Microvascular Ischemic Disease," Zanow said in a statement.

"In a twist of fate, my initial diagnosis was first reported to me on April 16, the same day I had the great honour of being sworn in as a member of the Queensland Legislative Assembly.

"Prior to April 16, I was unaware of it.

"This diagnosis means I will not be able to continue my work as the Member for Ipswich West beyond the next election.

"It is not a decision I have made lightly, but the reality is I have been given no other choice.

"Serving this community as an MP is one of the greatest honours of my life but because of this disease, my time in public office, and likely my life, will be cut short."

He will leave office on October 26, when the Queensland state election will be held.

"There is no proven treatment available to slow the debilitating effects of my condition, and the prognosis for me requires that I must turn my attention immediately to the needs of my daughter Lola, who is aged seven," Zanow said.

READ MORE: Suspect in slaying of three women in 'serious condition' as police recover crossbow

https://www.instagram.com/p/C9ThGIxvVj5/

State Opposition Leader David Crisafulli paid tribute to Zanow.

"Inside and outside parliament, Darren Zanow has fought all his life for the people of Ipswich," Crisafulli said.

"He now enters a new fight of his own after being diagnosed with microvascular ischemic disease.

"His time in parliament will end in October, but his character and generosity of spirit will be forever admired.

"I want to wish Darren and his family all the best as they take on this health battle."

READ MORE: Australians killed in Philippines just days from returning home

Queensland Premier Steven Miles also wished Zanow and his family well "for the battle ahead".

"My thoughts are with Darren Zanow, after his diagnosis with Microvascular Ischemic Disease.

"In this job, we might be on different sides, but we're all human and we all have families.

"Today's news is sad and shocking."

John Setka will step down as the CFMEU's Victorian secretary, effective immediately, the union says.

The controversial figure at the powerful union made the announcement tonight ahead of a joint investigation by 9News, 60 Minutes and The Age, which is set to be published this weekend and which alleges serious misconduct by some union members.

Setka was sent a list of questions today regarding recordings and text messages that are set to be published at the weekend, 9News Melbourne reporter Mark Santomartino reports.

READ MORE: Australian soldier and her husband charged with spying for Russia

https://twitter.com/60Mins/status/1811326512643313891?ref_src=twsrc%5Etfw

The union said Setka's decision was "in response to the ongoing and relentless stories written with multiple allegations whether true or not about this great union".

"I have proudly served this union in the capacity of an official for close to 40 years and as Secretary for the past 12 years," Setka said.

"These stories have been constant, and while I've been the target of many of them, enough is enough, the ongoing false allegations continually do nothing but harm the work this great union does for its members.

"If my stepping down can stop these malicious attacks on our members and officials and allow this great union to continue to fight for our members, for their wages and conditions, so that they go home safely to their families each day, then I'm happy."

The CFMEU has had allegations of misconduct levelled at it in the past regarding Setka.

READ MORE: 'Once-in-a-lifetime' stellar event could put 'new star' in Aussie night sky

In a video interview with Santomartino, Setka insisted that he and his senior officials had done nothing wrong.

"I know it's just all about trying to get me," Setka said.

"I'm hoping by me stepping down a bit earlier, hopefully will stop the barrage and all the false accusations and all the false stories about this great union, and my job is to protect the members and to protect the union."

Setka recently told delegates at a monthly meeting he would not renominate at the next union election late this year, The Age reports, but that exit has now been brought forward.

In the union's official statement, Setka said "no individual is greater than the union".

"I depart knowing I leave this union in the very capable hands of the National Office and Victorian Executive to continue the work for our members.

"To the members of the CFMEU, you have made me incredibly proud, and it has been an honour and privilege to be your secretary, for that I say thank you."

Three teenagers have been charged after carrying out a terrifying alleged carjacking in Melbourne's south-east yesterday.

An Uber Eats food delivery driver parked in a driveway at a home in Langwarrin about 1.45pm before a 17-year-old allegedly ran from a passing ute and jumped into the driver's seat.

As the delivery driver attempted to stop the alleged carjacking, another teenager ran from the ute and punched the driver in the head.

READ MORE: Newly elected MP to stand down after 'devastating news'

The man got back to his feet and chased the car as it sped off, but fell under the vehicle.

The 33-year-old was rushed to hospital with serious injuries.

Police said the teenagers drove from Langwarrin to Oakleigh, dumping their vehicle on Paddington Road, before allegedly breaking into a home on nearby Carlisle Crescent.

Police allege the offenders found an elderly couple, assaulted them and ransacked their house.

Officers swarmed the Oakleigh property and arrested three teenagers.

Two of the 17-year-olds were charged with aggravated home invasion and aggravated carjacking.

They were expected to appear in court today.

The third teenager was charged with aggravated home invasion and aggravated carjacking and is in hospital under police guard.

The personal data of thousands of people has been stolen after the Victorian Environmental Protection Authority's (EPA) external contact centre was hacked.

9News understands the EPA advised around 2000 people that they had been affected by the hack in an email yesterday – months after the hack actually happened.

While no financial information is understood to have been stolen, the EPA told people that names, phone numbers and addresses had been.

READ MORE: Handyman keeps denying elderly neighbour's murder

In its email to impacted customers, the EPA said it takes confidentiality seriously.

"While the accountability for this incident sits with the service provider, EPA has and will continue to work with them to ensure security remains robust and in line with our expectations," it said.

A small number of EPA employees were also impacted by the hack on the external contact centres, which are managed by Oracle.

The information targetted by an unknown third-party hacker was dated between 2021 and 2022.

The hack took place in April this year, the same month the EPA found out about the breach.

Customers were only notified by email yesterday.

"We have been assured by our service provider and our own internal security team the intruder has been removed and blocked," customers were told.

The EPA does not know who the alleged hackers are.

‘It is an extremely sad day for Ponsonby and we are devastated.’

Maggie Wilkinson wants a public apology and the country’s adoption laws replaced.

Residents are devastated police took 19 hours to respond to concerns about their 85-year-old neighbour, who later died in the bathroom of his Sydney home.

Fred Lucas grew concerned for his neighbour, Sid, who he hadn't seen in a few days.

He called police to check on his friend at his William Street unit in Bankstown about 5.40pm on July 4 last week but officers didn't arrive until 12.30pm the following day.

READ MORE: Biden mistakenly calls Ukrainian President 'Putin'

"I knocked on the door a few times and nothing happened so I rang the police and they said they were busy," Lucas told 9News.

"I just had to wait."

When police finally arrived and forced entry into the home, Sid was lying on the bathroom floor struggling to breathe.

Emergency services conducted CPR but he couldn't be saved and died at the scene. 

"The police response was very slow. It should have been quicker, had they come quicker, they might have been able to save his life," neighbour Christopher Payet said.

"I got very upset when he passed away because he was a good man," another neighbour, Hannah, said.

READ MORE: Sydney doctor charged over alleged sexual assault of two patients

NSW Police Assistant Commissioner Brett McFadden earlier today declared the 85-year-old's death a "critical incident" and ordered an investigation.

"My concern was the circumstances and the delay," he said.

"We'll own this sort of situation, we'll own our response.

"If there's things that we need to be doing, we'll certainly be addressing it."

The Critical Incident Investigation Team will probe why it took officers from the neighbouring Cumberland Police Area Command 19 hours to respond to the call.

McFadden earlier noted Bankstown was "one of the busiest commands in the state".

READ MORE: Warning over hoax phone calls from police station

But 9News understands the command was adequately staffed at the time.

"Looking at the workload and the priorities that were considered at that time, on the information that was available, it is now a direct report from the investigation to me," McFadden said.

The investigation will be subject to an independent review by the Professional Standards Command and overseen by the Law Enforcement Conduct Commission.

A report will also be prepared for the information of the coroner.

"We want the public to have confidence that when they call triple zero, the police will come," Acting Police Minister Tara Moriarty said. 

Gregory Simon punched a woman in the head before strangling and raping her.

The 26-year-old woman was arrested after police spiked the stolen car she fled in.