Police Bureau of Investigation on Sunday identified the body of a woman, found in a drum in Rajshahi four days ago, and arrested four persons in connection with the death.
The deceased -- Nonika Rani Roy (23), daughter of Nipen Chandra Barman -- hailed from Thakurgaon, said police.
The arrestees are Nimai Chandra Sarker (43), a police constable of Rajshahi GRP Police Station; and his accomplices Kabir Ahmed (30), Sumon Ali (34), and a microbus driver Abdur Rahman (25).
Nonika lived at Pathanpara in Rajshahi as she was a nurse at a private hospital in the city. She completed training as a nurse from the Nursing Institute under Rajshahi Medical College Hospital, said Md Abu Yusuf, additional superintendent of PBI.
Abul Kalam Azad, additional superintendent of police of Rajshahi PBI, said Nimai's involvement was identified through a CCTV footage and information technology. Nonika was raped and murdered, he said.
Nimai already confessed to police that he had a relationship with Nonika for six to seven years and he raped her with a false promise of marriage.
On April 16, Rajshahi police recovered the body of Nonika from a drum in a pond near Chapainawabganj-Rajshahi bypass. Shah Makhdum police filed a murder case against unidentified persons following the incident on that day.