Kota Setar district police chief ACP Siti Nor Salawati Saad said that the 43-year-old suspect identified the boy as his son.
"There were slash wounds on the necks of the three victims - the suspect's wife, daughter, and son. The suspect has confirmed that all three bodies are indeed those of his wife and children," she said in a statement.
"DNA samples of the suspect, the three victims, and one surviving child have been collected, and sent to the Chemistry Department, for analysis," she added.
On Monday, the bodies of a 43-year-old foreign woman and her 10-year-old daughter, with wound marks on their necks, were discovered in a drain, behind an abandoned building in Pekan Simpang Kuala, at 5 pm.
The suspect, who is also the husband and father of the victims, was detained at a mosque in Bukit Pinang, at 9 pm the same day.
The body of a boy, estimated to be around two years old and believed to be the suspect's youngest child, was found at Pantai Leman, Kuala Kedah, yesterday.
-- BERNAMA
