Dhaka, Nov. 8 -- Six months after the fatal stabbing of Dhaka University student SM Shahriar Alam Shammo, investigators have found drug peddlers responsible for the killing.

In its chargesheet over the incident, police said Shammo, a leader of the Jatiyatabadi Chhatra Dal, and his friends were attacked by drug dealers in May after they told them to stop selling marijuana inside Suhrawardy Udyan.

"Seven people have been charged in the case. Four others have been recommended for discharge as the allegations against them could not be proven. Shammo was stabbed to death because he tried to stop them from selling marijuana in Suhrawardy Udyan," said Inspector Akhtar Morshed of the Detective Branch (DB), who led the investigation.

Shammo was...