Fazlul Haque Howlader, a 60-year old, died instantly after being hit by his son Abul Howlader at Shahebrampur Union of Kalkini Upazila on Saturday.
Abul Howlader is a compulsive gambler, said Kalkini Police OC Nazmul Huda.
He was heading for another round of gambling in the morning when his father stopped him. Abul kicked his father hard as a result of which he died instantly.
Abul has been absconding ever since, said the OC.
Police have sent the body to the Madaripur Hospital morgue. A case has been filed with police over the killing.