Victim Mohammad Johnny, 20, was admitted to the DMCH at around 8:30pm with stab injuries and bullet wound. He died at 11:30pm.

"Some local rogues used to tease us since we moved to this new locality," said Sonia Akhtar, the victim's sister.

They shifted to a rented house at Purba Jurain area of Shyampur a few months ago, said Rafiqul Alam, the victim's father.

Johnny was a tailor at the Shyampur Bazar, his younger brother Ronny is an apprentice electrician and his mother Hawa Begum works in a nearby pharmaceuticals factory.

SSC examinee Sonia Akhtar, 16, and her sister Poly Akhtar, 15, are studying at Purba Jurain Adarsha High School.

Poly, a class-nine student, told The Daily Star, "The local boys, Palash, Julhash, Bilash -- three brothers and Sentu, Baser, Shukkur, Shikder used to hurl abuses at us."

"Later, they used to pull our scarves or dragged us by the arms. They even once threw coloured water on us," she added.

The sisters complained to their elder brother Johnny about the teasing and showed the locals who used to tease them.

Johnny came from the village home two days before the incident, and went to talk to the teasers around 8:30pm on Sunday. The hoodlums stabbed him four times in the abdomen and shot him pointblank.

Howa Begum told The Daily Star, "Three days earlier while I was returning home, Mithu threatened to kill my son."

Ronny filed a case. None has been arrested till filing of this report in the evening.