Ayatollah al-Sayyid Muhammad Baqir Muhsin al-Hakim at-Tabataba'i, also known as Shaheed al-Mehraab, was a senior Iraqi Shia Islamic scholar and the leader of the Supreme Council for Islamic Revolution in Iraq (SCIRI). Al-Hakim spent more than 20 years in exile in Iran and returned to Iraq on 12 May 2003 following the US-led invasion. Al-Hakim was a contemporary of Ayatollah Khomeini, and The Guardian compared the two in terms of their times in exile and their support in their respective homelands. After his return to Iraq, al-Hakim's life was in danger because of his work to encourage Shiite resistance to Saddam Hussein and from a rivalry with Muqtada al-Sadr, the son of the late Ayatollah Mohammed Sadeq al-Sadr, who had himself been assassinated in Najaf in 1999. Al-Hakim was assassinated in a massive car-bomb explosion in his hometown Najaf in 2003 when he emerged from the shrine of Imam Ali. He was 64. At least 75 others were also killed in the bombing.