KUALA LUMPUR: Bukit Aman Criminal Investigation Department (CID) has exhausted all legal means and police assets in investigating the murder of Zayn Rayyan Abdul Matiin, says Comm Datuk Seri Mohd Shuhaily Mohd Zain.
The CID director said the case's mystery would only be uncovered during the trial of Zayn Rayyan's parents, who on Thursday pleaded not guilty to the charge of child negligence.
