A man was killed allegedly by his mentally challenged son in Baliadangi upazila of the district early yesterday.
The deceased, Saiful Islam, 40, was son of Makbul Hossain of Rupganj village in the upazila.
The alleged killer Rasel Rana, 22, went into hiding soon after the murder, Officer in Charge of Baliadangi Police Station Habibul Haque Prodhan said.
Quoting the deceased’s family members, police said after taking their meal on Monday night Saiful and three of his family members, including their only son Rasel, went to sleep.
Around 5:00am, when Saiful’s wife Shahida woke up to offer her Fazr prayer, she saw her husband’s bloodstained body lying on the floor.
Hearing screams, neighbours rushed to the spot, found Saiful dead and informed the police.
On information, police went to the spot, recovered the body and sent it to Thakurgaon Sadar Hospital for autopsy.
They also recovered a spade which might have been used for killing Saiful, he added.