1977 Hanafi Siege

On March 9–11, 1977, three buildings in Washington, D.C. were seized by 12 Muslim  gunmen, led by Hamaas Abdul Khaalis, who had broken from the Nation of Islam because he blamed them for murder. They took 149 hostages and killed a radio journalist. After a 39-hour standoff, the gunmen surrendered and all remaining hostages were released from the District Building (the city hall; now called the John A. Wilson Building), B'nai B'rith headquarters, and the Islamic Center of Washington.