Malaysian police believe a missing Indonesian domestic worker may be able to help them with inquiries into the murder of businessman Nazrin Hassan at his home in affluent Mutiara Damansara in June.

Nazrin’s family had denied having any maid, but a police source told The Malaysian Insight that they now admitted there was an employee. It was hoped that the worker could “shed more light on the case”.

The chief executive officer at venture capital incubator Cradle Fund was killed when a fire ripped through his house at about 2:30pm on June 14. An autopsy found that he had burns on 30% of his body.

Initially ruled an accident, the fire was reclassified as murder after a forensic investigation by the Fire and Rescue Department. Nazrin’s remains were exhumed on October 8 and a second post-mortem was  ordered, but pathologists have not yet released their conclusions.

Police know the domestic worker was present in the house when the fire broke out, and then disappeared, according to The Malaysian Insight report. They have not said whether the worker is a suspect.

Investigators believe the Indonesian, reportedly a woman, was an illegal immigrant, as no immigration records have been unearthed. It is thought her illegal status has stopped her from coming forward.