Islamabad: President Asif Ali Zardari and Prime Minister Shehbaz Sharif have expressed grief and sorrow over the death of the father of Salman Masood, Editor of the English Daily 'The Nation'. Condoling with the bereaved family, they prayed for the departed soul.According to Radio Pakistan, Minister for Information and Broadcasting Attaullah Tarar also expressed grief and sorrow over the death of the father of Salman Masood.