The father and brother of prime accused Siddhartha Das have been picked up for questioning in connection with the killing of retired Rangpur Zilla School teacher Ganapati Chakraborty and three members of his family.

Rangpur Metropolitan DB Deputy Commissioner Sanatan Chakraborty told reporters that a DB team picked up Siddhartha’s father Binoy Chandra Das and brother Partha Das from their home in Masuapara on Saturday evening.

He said Binoy had been asked several times over the past few days to appear at the DB office for questioning but did not do so.

“He was basically brought to the DB office for questioning,” the DB official said.

“He is being questioned. Let’s see what information we can collect from him and how he can cooperate with us. A decision will be taken following the questioning,” he added.

Regarding Siddhartha’s brother, Sanatan said Partha had allegedly harassed a journalist covering the killings.

“The journalist verbally complained to us. If he files a written complaint, we will take action against him,” he said.

The bodies of Ganapati Chakraborty, 65, his wife Pritilata Chakraborty, 50, daughter Parthi Chakraborty Agami, 25, and son Priyam Chakraborty Ayush, 12, were recovered on Saturday night (Aug 22).

A case was filed and the investigation was later transferred from Kotwali Police Station to the Detective Branch of Rangpur Metropolitan Police.

Police said two accused had given confessional statements before a court under Section 164 of the Code of Criminal Procedure.

On Monday, the investigation was formally transferred from Kotwali police to the Detective Branch of Rangpur Metropolitan Police.