Homicide detectives have upgraded the charge against a teenager over the death of a pregnant woman who was struck in the head by a piece of concrete in a Perth shopping centre car park.
WARNING: This story contains the image and name of an Indigenous person who has died.
Diane Miller, 30, died in hospital on Friday morning after she was hit and left critically injured three days earlier.
Police said she was sitting in her car at Waterford Shopping Centre in Karawara, south of Perth, when the lump of concrete was hurled through the open passenger window, striking her head and causing her to go into cardiac arrest.
Passers-by spent 20 minutes trying to resuscitate Ms Miller in the car park, before she was taken by Royal Perth Hospital by ambulance.
A 17-year-old boy from Kensington was originally charged with grievous bodily harm, but that charge has now been upgraded to murder.
Police allege the boy was one of about 15 young people who had gone to the shopping centre "looking for trouble".
He is due to appear before the Perth Children’s Court on Friday.
Ms Miller's partner, Philip Edmonds, last week described the loss of his partner and unborn child as devastating.
"She had a wicked attitude, I loved her. We all loved her as one and it's brought us together. That's my baby girl and that was my baby inside," he said.
"She was one good girl. I loved her with all my love. I will still love her until the day I die.
"We're all one mob and I can't say anything more. It's too hard. Thank you very much."
