Imad Mughniyah, one of the world's most wanted terrorists, ran the unit until Feb. 12, 2008, when he was killed in an attack in Damascus, presumably by Israeli intelligence. Since then, Salim has largely assumed the duties of his notorious predecessor, with Mughniyah's brother-in-law, Mustafa Badr al-Din, serving as his deputy. The two men report only to their superior, and to General Kassim Sulaimani, their contact in Tehran. The Iranians, the principal financiers of the military Lebanese "Party of God," have repressed the Syrians' influence.