Mohammad Sadeq Amani ( Persian : محمدصادق امانی ) was an Iranian political activist. He was a member of both Fada'iyan-e Islam and the Islamic Coalition Party . Amani was involved in the January 1965 assassination of Hassan Ali Mansur , Prime Minister of Iran during the Shah Mohammad Reza Pahlavi administration. He was later executed by the regime for his part in the assassination.