Police are expected to again quiz four suspects who were earlier remanded and linked to the assault case involving firefighter Muhammad Adib Mohd Kassim, following the reclassification of the case as murder.
The Star reported deputy inspector-general of police Noor Rashid Ibrahim as saying that police are gathering more evidence in regards to the case.
"The four will definitely be called in again. With the case now reclassified as murder, we will now be looking at the finer details.
"There is more evidence that we need to gather on the case," he said as reported by the daily.
Noor Rashid also said that police had recorded statements from 38 people and that they were in the midst of identifying more people who could furnish evidence on the case.
The 24-year-old was part of a team of nine firefighters deployed in response to vehicles being torched by rioters outside the Sri Maha Mariamman Temple in Seafield, Subang Jaya on Nov 27.
According to the police, he was dragged out of the vehicle and assaulted.
Adib received treatment at the National Heart Institute and showed signs of improvement but his condition worsened on Dec 16.
He passed away a day later.