Mir Asadollah Madani

Mir Asadollah Madani Dehkharghani (; born 1914 in Azarshahr, East Azerbaijan – died September 11, 1981 in Tabriz, East Azerbaijan) was an Iranian politician and Shia cleric. He was the second Imam Jumu'ah of Tabriz, the Imam Jumu'ah of Hamadan, the representative of the Supreme Leader in East Azerbaijan for less than a year, and a member of the Muslim People's Republic Party. Madani was also Hamadan Province's representative in the first term of the Assembly of Experts. 
He was assassinated on September 11, 1981 by a member of the People's Mujahedin of Iran while praying in Tabriz after Mohammad-Ali Ghazi-Tabatabaei. Because of his assassination, he is sometimes referred to as "the second martyr of Mihrab."
Political activity.
In 1970, Mir Asadollah Madani returned to Iran in opposition to the rule of Mohammad Reza Pahlavi. However, his actions resulted in him being exiled to Bandar Kangan. He was later arrested by SAVAK and was deported several times in the 1960s. During that time, he was diagnosed with pulmonary tuberculosis. Based on his medical records and death, there is a strong belief that he died of that disease. He used SAVAK to escape the pressures of the religious spectrum in 1972, banishing him to the Valley Moradbeik around Hamedan. 
After the 1979 Iranian Revolution, he was appointed as the Imam of Tabriz.
Assassination.
On September 11, 1981, at the end of the Friday prayer, Madani was approached by an unknown man. The man then detonated a grenade that was hidden under his clothes, which led to the death of Mir Asadollah Madani and three others, as well as leaving 50 people injured. Madani was killed in a mihrab and hence acquired the title "the second martyr of Mihrab," the first one being Ali ibn Abi Talib who was also assassinated while praying. MEK claimed responsibility for the assassination.