On Nov 3, 1975, soon after the assassination of Bangabandhu Sheikh Mujibur Rahman, four of his closest associates were killed in their cells at the old central jail on Nazimuddin Road in Old Dhaka. The jail, which has since been converted to a museum to commemorate that dark day, held several events dedicated to the memory of the four national leaders on Wednesday. Photo: Asif Mahmud Ove