He says people with information about the chairman’s location will be rewarded
The court also recorded deposition of a witness, another coworker of Sagar, on Friday.
Narayanganj Court Police Inspector Md Habibur Rahman said Senior Judicial Magistrate Ishtiak Ahmed’s court recorded the statements.
Police arrested the trio, aged between 12 and 13 years, on Thursday night.
The manager and lineman of the factory, Jobeda Textile Mill in Rupganj, had been arrested earlier.
Sagar died after air was pumped into his rectum with a compressor hose last Sunday.
In August last year, a 12-year-old boy was killed similarly at a motor workshop in Khulna by his employer.
Two people have been sentenced to death for the murder.