BSS, Dhaka :The 39th Jail Killing Day will be observed in the city as elsewhere across the country in a solemn manner today. On this day in 1975, four national leaders and key-personalities in the Bangladesh government in exile Acting President Syed Nazrul Islam, Prime Minister Tajuddin Ahmed and ministers Captain M Mansur Ali and AHM Quamaruzzaman, who led successfully the Liberation War in absence of Father of the Nation Bangabandhu Sheikh Mujibur Rahman in 1971, were assassinated inside Dhaka Central Jail by the usurpers of state power of former president Khondoker Mostaque Ahmed government. The horrendous assassination of the four champions of democracy and independence by some disgruntled mid-ranking army officers belonging to the anti-liberation forces in a well-protected jail, unheard of anywhere in the world, following the assassination of Bangabandhu and most of his family members on the fateful night of August 15 in 1975 added a black chapter in the history of Bangladesh.In separate messages yesterday, President Abdul Hamid and Prime Minister Sheikh Hasina recalled with gratitude the immense contributions of the slain four national leaders in the country’s Liberation War and other national movements for restoration of people’s fundamental rights.Different political parties including the ruling Awami League and its allies in the grand-alliance government, associate bodies and other pro-liberation parties and socio-cultural- professional organisations will pay deep homage to the slain four national leaders, who were also close associates of Bangabandhu, in observance of the day in a befitting manner.Awami League will observe the day with due solemnity. It will organise a public rally at the historic Suhrawardy Udyan in the capital at 3 pm marking the Jail Killing Day. Awami League President and Prime Minister Sheikh Hasina will attend the public rally as the chief guest. Party’s presidium member and Deputy Leader of the Jatiya Sangsad Syeda Sajeda Chowdhury, MP, will chair the rally to be addressed by the national leaders.