News in 5: Parents' warning; Andy Murray baby news; Jacqui Lambie in citizenship saga.

1. Parents issue warning after 2-year-old son died following five doctor visits.

When two-year-old Lachlan Black was admitted to Melbourne's Monash Medical Centre at 1pm on August 17, 2014, he'd already seen five doctors in five days.

His parents say he'd been taken to the hospital three times, after coming down with a fever and a rash, and visited a GP twice. No one could determine what was wrong with him, according to Channel 7. The little boy died in the early hours of the following morning.

Now, Tim and Angela Black are warning parents to trust their instincts, after a coronial inquest into Lachlan's death has been given the go-ahead by the Coroner's Court.

"We've argued at the Coroner's Court that had antibiotics been given to Lachlan earlier in the day then he wouldn't have died and his death was preventable," Lawyer Kathryn Booth told Channel 7. 

According to reports from News Corp, Lachlan wasn't given intravenous antibiotics until 10:30pm on the night of the 17th - nine hours after he was admitted to the hospital that afternoon. He died from septicaemia just hours later.

"He suffered in hospital and we had to see that, he should not have had to go through that, and we have to live with that for the rest of our lives," Angela told Channel 7. "He died a third-world death in a first-world country."

The couple's warning to other parents is to not back down when it comes to dealing with doctors.

"If you are worried, just follow what your instincts tell you," Tim, Lachlan's father, said. "Act soon and act first, worry about people's opinions later; the other way the price is too high."

The inquest will begin in July, News Corp reports, with Coroner Rosemary Carlin leading the investigation.

"The particular aspect of interest is when should antibiotics have been commenced, according to the evidence of Dr Raftos (an emergency medicine expert) it should have been at 2pm not long after the child was presented," Ms Carlin told a directions hearing for the inquest, News Corp reports.  "There would come a time when antibiotics would have been too late."

The hospital has not commented on the case.

2. Tennis star Andy Murray welcomes baby girl.

Andy Murray becomes a dad for second time as wife Kim gives birth to baby girl. #AndyMurray https://t.co/e8xlNPNkO1 pic.twitter.com/gFwr8qYOxx

— Daily Express (@Daily_Express) November 8, 2017

British tennis champion Sir Andy Murray and his wife Kim have welcomed a baby girl, their second daughter.

The couple, who were married in 2015, gave birth to their eldest daghter Sophia in February last year.

It's believed their second child was born in the UK only a few days ago, The Telegraph reports.

The news comes after Murray attended a charity tennis event in Glasgow in which he played against Swiss champ Roger Federer. It was Murray's first match since suffering a hip injury at Wimbledon.

Both Kim and the baby are doing well, the BBC reports. And Murray's grandmother Shirley Erskine said in a statement: "All the family is delighted".

3. Jacqui Lambie drawn into citizenship saga, as her father was born in Scotland.

Jacqui Lambie next in citizenship crisis after confirming father was born in Scotland. https://t.co/E74JBoVfnS #7News pic.twitter.com/x9FYjVUaAx

— 7News Yahoo7 (@Y7News) November 8, 2017

As Malcolm Turnbull faces calls from Labor to toughen his proposed checks on MP eligibility, Senate crossbencher Jacqui Lambie has been drawn into the citizenship fiasco.

Mr Turnbull met with Opposition Leader Bill Shorten and Labor's Senate leader Penny Wong in Melbourne for two hours on Wednesday to thrash out an issue that is undermining confidence in the parliament, AAP reports.

The meeting followed reports Senate crossbencher Jacqui Lambie might become a casualty of the constitution because her father was born in Scotland.

Senator Lambie insists her affairs are in order but it's unclear whether she had renounced any potential UK citizenship by descent before entering parliament.

"I'm happy to put on record that I'm satisfied that my parents are both Australian citizens and I have no concerns about me being a dual citizen because of where they were born or came from, in the case of my father, as an infant," she said in a media statement.

The Prime Minister wanted Labor agreement on a 21-day process, which would involve members and senators publicly declaring they are not a citizen of any country other than Australia and producing birth details relating to them and their parents.

4. Director of Salim Mehajer's wedding business charged with murder.

The sole director of Salim Mehajer's new wedding business venture charged with murder https://t.co/pihfMAapL2 | @LucyCormack

— smh.com.au (@smh) November 8, 2017

A man accused of the shooting murder of a Sydney underworld figure is the sole director of Salim Mehajer's new wedding business.

Ahmed Jaghbir was charged on Wednesday with the murder of Kemel Barakat, who was shot multiple times while sleeping in his unit in March this year, AAP reports.

The 28-year-old was appointed sole director of Mehajer's new wedding business, Mehajer Wedding and Event Planning, in September.

Mehajer, the former deputy mayor of Auburn, is the sole shareholder of the business.

This comes at the same time as Mehajer's house was raided by NSW Police on Wednesday. Police seized several items, including a computer, in a raid that is reportedly linked to an investigation into insurance fraud, AAP reports.

5. Texas gunman escaped mental facility, yet still was allowed to purchase guns.

Texas gunman Devin Kelley escaped from mental health facility in 2012 https://t.co/KnVZl9jGWe pic.twitter.com/1jPSXVc7Vk

— TODAY (@TODAYshow) November 8, 2017

The man who carried out the Texas church mass shooting escaped from a mental health facility in 2012, the same year he was convicted by a US Air Force court-martial of domestic abuse, AAP reports.

Devin Kelley, who massacred 26 people at a church in rural southeastern Texas on Sunday, was convicted of assaulting his first wife and stepson while serving in the US Air Force.

That same year he briefly escaped from a mental health facility in Santa Teresa, New Mexico, according to an El Paso, Texas, police report.

The person who reported Kelley's escape warned police that he could be a danger to himself and others and had been caught sneaking weapons into Holloman Air Force Base in New Mexico, where he had been stationed.

He had attempted to "carry out death threats that (Kelley) had made on his military chain of command", the report stated.

Police found Kelley in El Paso and turned him over to New Mexico police.

The attack at the First Baptist Church in Sutherland Springs ranks as the fifth deadliest by a single gunman in US history.

The dead ranged in age from 18 months to 77 years, and include the unborn child of a pregnant woman who was killed. Twenty others were wounded, with 10 still in critical condition.

Kelley died of a self-inflicted gunshot wound in his getaway vehicle, where authorities found two handguns.

6. Pregnant Kate Middleton delivers a speech on children's mental health.

Wow like Kate Middleton in a black lace dress and get inspiration for your Christmas party https://t.co/CUbhYGlm5t pic.twitter.com/Z2PolzvpFV

— Mirror Fashion (@MirrorFashion) November 8, 2017

The Duchess of Cambridge gave a glimpse of her growing baby bump as she attended a gala dinner for a children's mental health charity.

Kate, who is pregnant with her third child, dazzled in a black floor-length dress with lace detailing as she arrived at Kensington Palace's 18th-century Orangery, AAP reports.

Earlier, the Duchess delivered a speech at a Place2Be forum on how schools can tackle mental health problems.

She spoke about taking Prince George to his school and the importance of supporting young children.

"As a mother, just getting used to leaving my own child at the school gates, it is clear to me that it takes a whole community to help raise a child," Kate, whose eldest child recently started at Thomas's Battersea in south London, said.

"I believe what you all know to be true, that getting help and support to young children at the very earliest stage helps improve their outcomes later in life.

Kate has been suffering from hyperemesis gravidarum - a severe form of morning sickness - but has stepped back into the limelight in recent weeks.

She is now in her second trimester and due to give birth in April.