A Khulna court on Monday sentenced three youths for life term imprisonment on charges of killing former joint secretary of city unit of Awami League Khan Ibne Zaman on October 13 in 2013.
The convicts are- Sheikh Tayebur Rahman alias Iran, Apurba kumar Biswas and Md Shohag Sheikh.
The court also acquitted one Ashutosh Bapery as the charge against him was not proved during the trial.
Judge of the Khulna Metropolitan Session Judge Court Mahmuda Khatun pronounced the verdict against them in presence of all the accused.
The judge also fined Tk30,000 each. In default, they will have to suffer more six months rigorous imprisonment.
The court sources said the accused hit Khan Ibne Zaman on the head, strangulated him, tied his legs and hands with rope at his residence at Khalishpur area in Khulna on October 13 in 2013.
Later, Md Shahab Uddin Khan, brother of the deceased, filed a case with Khalishpur police station accusing some unidentified criminals on October 14.
On October 21, police arrested three convicted criminals from Khulna and produced them before the Chief Metropolitan Magistrate Court (CMM).
The arrested accused made confessional statements before the magistrate under section 164 of the Criminal Procedure Code involving themselves into the Zaman murder.
Inspector Nikhil Chandra Mondal, investigation officer (IO) of the case, pressed the charge sheet of the case to the court against four youths on January 14, 2009.