Miller’s brother said doctors told the family his sister’s condition was “very unlikely” to improve, with the swelling of her brain getting worse, while speaking outside Royal Perth Hospital.
“They are going to keep monitoring her brain; if it keeps swelling it’s going to stop the blood going to her brain, you’re going to end up brain dead and once that happens … the baby will die [too],” he said.
He said the baby was “too young to come out”, with the five-months’ pregnant mother due to find out the sex of her child next week.
Her eight-month-old baby boy will likely be left without a mother, according to her brother, who said he “wouldn’t wish this on anyone”.
“We are destroyed and we want justice. We want these people whoever they are … we want what’s deserved,” he said.
Police said there was a fight at the Waterford Plaza car park on Manning Rd in Karawara between 7pm and 7.30pm on Tuesday.
“It will be alleged during the altercation, the 17-year-old male threw a rock at the vehicle, which went through the open front passenger-side window, hitting a 30-year-old pregnant woman in the head and causing her to go into cardiac arrest,” police said in a statement on Wednesday.
Police officers and members of the public performed CPR on the woman until paramedics arrived.
She was taken to Royal Perth Hospital where she remains in intensive care.
The boy, from Kensington, has been charged with causing grievous bodily harm and breaching bail.
Inspector Brett Baddock said the woman was five months’ pregnant and the baby was also fighting for life.
“We have some concerns for both her safety and also the baby,” he told reporters.
“The parties were not known to each other.
“I put it down to quite simply [allegedly] senseless, unprovoked violence, which is unacceptable, and we won’t tolerate it.”