A tribunal in Dhaka today sentenced six people to death for killing a couple -- a retired government primary school teacher and his wife -- in a bid to grab land property in Sadar upazila of Tangail in 2017.

Judge Abu Zafar Md Kamruzzaman of the Speedy Trial Tribunal-1 of Dhaka handed down the sentence in presence of the six accused at the tribunal, said advocate Abu Abdullah Bhuiyan, a prosecution lawyer.

The convicts are Swapon Kumar Das, Zahidul Islam, Forhad, Moniruzzaman Bhuiyan, Monzurul Uslam and Shayan Mia.

According to the prosecution, Swapon, who was a step-brother of victim Anil Kumar Das, made a plan to embezzle Anil's land property in connivance with the other five accused.

On July 26, 2017, the six accused killed Anil Kumar Das and his wife and hid the two bodies in a septic tank of the victims' house

After being informed, police recovered the bodies.

Victims' son Nirmal Kumar Das filed a case was with Tangail Police Station over the double murder on July 28, 2017.

Later, the case was transferred to the Speedy Trial Tribunal-1 of Dhaka from Tangail for quick disposal.

On September 17 of 2018, police pressed charges against the six accused in the case.

The court on August 7 last year framed charges against the six accused.

Twenty-seven prosecution witnesses out of 35 so far gave their depositions in the case.