A father was brutally killed by his son in Nagarpur of Tangail Saturday afternoon.
The deceased was Lal Mia, 60, of Chardanga village.
Locals said that the victim had been suffering from old-age complications for many days.
On Friday, he wished to sell his cow to bear treatment cost which angered his son Azhar, 35.
Hearing Lal Mia scream due to beating by Azhar, locals rushed to the spot and rescued him. Azhar escaped the scene.
Later, the father sold the cow, but when Azhar learnt about it after coming home, he hacked his father with a sharp weapon, leaving him critically injured.
Lal Mia was sent to Upazila Health Complex by the locals where duty doctor declared him dead on Saturday.
Babu, the younger son of Lal Mia, filed a case.
Confirming the incident, Nagarpur police station Officer-in-Charge Jahirul Islam said that they were yet to arrest Azhar.