A woman was stabbed to death allegedly by her son at Faridganj upazila in Chandpur district early Wednesday while asleep.
Deceased Monwara Begum, 65, was a resident of Pashchim Barali area under Faridganj municipality.
Momin Dewan, 42, went into hiding soon after the incident but, later, was caught by locals and handed over to police.
The incident went viral on social media after Faridganj Police Station officer in-charge (OC) Mohammad Shaheed Hossain had posted a picture of Monir on Facebook.
It was learnt that Momin has been suffering from mental disorder. He killed one Rubban 17 years ago and served several years in jail in the murder case.
He hacked his mother Monwara to death with a machete in the house at early hours of Wednesday while she was asleep.
Being informed, police recovered the body and sent it to Chandpur Medical College Hospital morgue, said OC Shaheed.
A case was filed with the police station in this connection, he added.