JOHOR BARU (THE STAR/ASIA NEWS NETWORK) - A 16-year-old girl, Ms C. Durga Devi, and her 56-year-old mother could have been killed by a stalker.
Sources believe the suspect was in love with the student, who was described by a friend as a shy girl who did not mix with boys.
The killer could have been abetted by several others, police said.
State police chief Comm Datuk Wan Ahmad Najmuddin Mohd said they solved the double murder within eight hours after some arrests and were tracking down suspects still at large.
Eight men were arrested and remanded over the case, he said on Thursday (Sept 22).
He said two of them tried to flee the state on an express bus but they were caught on a highway near Pagoh hours after the victims' bodies were discovered.
On Wednesday, Ms Durga and her mother, Madam M. Mariayee, were found dead from multiple slash wounds at about 10.30am in a house at Taman Puteri Wangsa.
Madam Mariayee's three-year-old granddaughter, who was in the same room, was left unharmed.
The mood was sombre in the home on Thursday, as relatives and friends came from Kluang and Simpang Renggam to pay their last respects to the mother and daughter.
Ms Durga's friend, Mr S. Thiyagarasan, 17, described her as a shy person who did not mix with boys.
"She only mixed with me because I knew her from primary school," he said.
"I am sad. I have lost my best friend who had always been there for me."
Mr Thiyagarasan said Ms Durga was a humble person who was good in her studies.
He said she had not told him of any major problems she was having, except that she had argued with a man at school the day before she was murdered.
Her brother C. Satis, 26, said the family was overcome with grief.
"I hope those who murdered my mother and sister are punished," he told reporters.
He said the family knew about the incident at school but never thought that it would lead to this tragedy.