WARNING: Aboriginal and Torres Strait Islander readers are advised this story has images of a person who is deceased.
A Perth teenager accused of murdering pregnant mother Diane Miller by throwing a lump of concrete through her car window today pleaded guilty to a lesser charge.
Western Australia state prosecutors accepted the teen's guilty plea to the lesser offence of manslaughter.
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The teen cannot be identified as they were 17 at the time Miller was fatally injured.
Miller, 30, died after two days in intensive care in Royal Perth Hospital, where she had been placed in a medically induced coma.
Her unborn child, who was five months along, also died.
Miller was hit with a piece of concrete while sitting in her car outside Waterford Plaza Shopping Centre in Karawara.
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She was knocked unconscious and went into cardiac arrest.
Police arrested the 17-year-old the day after the attack.
Their charges were upgraded to murder, before today's developments in Children's Court.
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