A father and his daughter were killed in the capital's North Badda yesterday, barely 12 hours into the murder of a mother and her son in their Kakrail house.
Informed by locals, police rushed to the spot and recovered the bodies from the family's rented garret on the roof of a two-storey building.
Jamil Sheikh, 38, was a private car driver by profession. His daughter Nusrat Sheikh was 9, a class-III student of Badda International School.
After autopsy, a doctor at Dhaka Medical College morgue said Jamil's head was struck several times with something hard, causing severe wounds, while Nusrat was strangulated.
Morgue sources said they have collected high vaginal swab and DNA sample to determine whether the girl was sexually abused before being killed.
Contacted, Officer-in-Charge of Badda Police Station Kazi Wazed Ali said they are yet to ascertain who might have killed the father and daughter and why.
Police picked up Jamil's wife Arzina for interrogation.
Around 6:00am yesterday, house owner Dulal Pathan went to the rooftop hearing Arzina cry. When asked what happened, the woman, with her four-year-old son Alvi in her lap, showed Dulal the bodies lying in the bed, said Jamil's brother Imrul Islam Ibrahim quoting the house owner.
“She told locals that four unknown people stormed their house and killed her husband and daughter,” Imrul, who lives in the same locality, Moinarbagh.
Imrul added that one of his acquaintances called him around 6:00am, informing him that something happened at the house of his brother. He rushed there and saw the bodies.
Talking to this newspaper, Imrul said a youth who used to share the garret with the family had been missing since the incident.
According to a police source, Arzina had been giving inconsistent information during interrogation and officials suspect she might have a role in the double murder.
Earlier on Wednesday evening, unidentified persons killed a woman named Shamsun Nahar Karim and her 17-year-old son Sajjadul Islam Shaon in Kakrail.