Hassan Nasrallah, who led the militant Hezbollah organization in Lebanon for more than three decades and built it into a domestic political force and potent regional military power with ballistic missiles that could threaten Tel Aviv, was killed on Friday in heavy Israeli airstrikes just south of Beirut. He was 64.
Both Hezbollah and Israel announced his death on Saturday. Israeli officials had said that Mr. Nasrallah was the target of the attack, which rocked the area known as the Dahiya, a dense urban area south of the capital, with such violent force that residents fled in fear as a giant mushroom cloud rose over the city.
