Content warning: This story includes descriptions of domestic violence that may be distressing to some readers.
Her name was Drew Douglas.
She was in her 30s. She was a mum to four children. She had given birth to her fourth child just a month ago.
NSW ambulance paramedics arrived at a home in St Marys in Sydney's West around 6:45am on Wednesday. When they arrived, they found Drew with stab wounds to her chest.
She was treated by paramedics but died at the scene due to her serious injuries.
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Approximately 45 minutes later, a 35-year-old man from St Marys was arrested at Campbelltown Police Station and held in custody. The man, Shaun King, who police say is Drew's partner, had presented himself to the station.
He has subsequently been charged with one count of murder.
Following the death of Drew, police have confirmed a welfare call was made to authorities nearly 10 hours before she was allegedly murdered.
King rang police about 8.40pm on Tuesday. Assistant Commissioner Leanne McCusker said police received the phone call from King over concerns for his own welfare but officers did not attend the home.