Dhaka, May 14 -- The three suspects arrested in connection with the murder of Dhaka University student and Chhatra Dal leader Shahriar Alam Sammo are all outsiders, according to the authorities.

Police said they had come to Dhaka a few days ago and launched a business on the footpath.

Shahriar, a student of the university's Institute of Education and Research, was fatally stabbed on Tuesday night while riding a motorbike through Suhrawardy Udyan near the campus. He was a resident student from the 2018-19 session at the Sir AF Rahman Hall.

The 25-year-old was the literary and publications secretary of the BNP's student wing Chhatra Dal at the university.

Later, his brother Shariful Islam initiated a case against up to 12 unidentified i...