PETALING JAYA: Police have collected 228 DNA samples from residents at Idaman Apartment in Damansara Damai here as part of the investigation into the search for the killer of six-year-old autistic boy Zayn Rayyan Abdul Matiin.
Selangor police chief Datuk Hussein Omar Khan said the large-scale operation involved house-to-house checks and the collection of DNA samples from the residents.
