SINGAPORE - The elderly woman was stabbed and slashed hundreds of times, even after she died.
For five minutes during the gruesome killing, her teenage granddaughter endured the horror of the hacking sounds as she hid in her bedroom mere metres away.
Moments after the sounds stopped, the victim's daughter plunged six storeys to her death.
The details of the tragedy, which occurred in the early hours of June 4, emerged yesterday when State Coroner Marvin Bay delivered his findings into the deaths of Madam Rosaline Lim, 75, and her daughter, Ms Andrea Tay Su Lin, 51.
He ruled Madam Lim's death an "unlawful killing" by Ms Tay, who later committed suicide.
The findings also painted a picture of 17-year-old Germaine Ng, who desperately pleaded with her mother not to kill herself as she hid behind a locked bedroom door.
Her testimony, referred to in the findings, said that Ms Tay had been behaving strangely before the incident.
Germaine urged her mother to seek treatment several times, but she would always refuse, accusing her daughter of saying that she was crazy.
A few days before the incident, Ms Tay woke Germaine from her sleep, asking why she was pointing at her and "sucking her energy".
On June 2, she told Germaine she had asked her employer, Mr Ng Lip Seng, and Germaine's father, Mr Peh Hock Leong, to take her to a temple.
Mr Peh was Ms Tay's ex-boyfriend.
Said the teenager in her statement: "She felt people were targeting her and it was very bad.
On June 3, at about 9.30pm, Germaine and Ms Tay were to leave their flat to stay over at Mr Peh's home because Ms Tay wanted to meet him and "talk about her problems".