Dhaka, Oct. 18 -- The arrestees are Riyad's paternal uncle Joj Mia, his wife Sabina Akhter and their two children Asaduzzaman Shwapon and Tanzia Akhter.

They were apprehended in a hotel in Sylhet's Jaintiapur early on Friday morning while attempting to flee to India, said Uttarkhan Police OC Helal Uddin.

Riyad, 15, and his elder brother Rizwan Hossain, 18, were allegedly stabbed near their home in Uttarkhan's Taltola by their cousin Shwapon over a longstanding dispute on Oct 14.

He was initially taken to Tongi Hospital but later moved to Dhaka Medical College Hospital when his condition deteriorated. Riyad succumbed to his wounds a day later.

His father Md Raju Miah subsequently started a case against Shwapon and eight others over the...