An elderly couple were hacked to death on Wednesday by their son, a drug addict, in Ramkrishnapur village, Chaugachha upazila of Jashore.
The deceased are Mohiruddin, 65 and Ayna Begum, 55.
Hearing the cries of the victims at around 12pm, neighbours went to their home and found Mohiruddin and Ayna Begum bleeding. Both of them died before they could be taken to the hospital.
Locals then chased the perpetrator, Milon, 30 and handed him over to police.
"Milon had an argument with his parents in the morning. At one point Milon attacked them with a sharp weapon and ran away," said Rifat Khan Rajib, officer in-charge (OC) of Chaugachha police station.
The policeman futhered added, "Milon fled after the incident. The locals caught him from neighbouring Borobari area of Rajapur."
A case has been filed over the incident accusing Milon.
Local upazila parishad member Tarik Hassan Babul rushed to the spot upon hearing about the news.
"I later got to know that the couple's drug addicted son killed them after not getting money for drugs."