Al Qaeda leader Osama bin Laden was killed Sunday in a firefight with U.S. forces in Pakistan and his body was recovered, President Barack Obama announced Sunday. "Justice has been done," Obama said in a dramatic, late-night White House speech announcing the death of the elusive mastermind of the September 11, 2001, attacks on the New York and Washington.Obama said U.S. forces led the operation that killed bin Laden. No Americans were killed in the operation and they took care to avoid civilian casualties, he said. "The United States has conducted an operation that killed Osama bin Laden, the leader of al Qaeda and a terrorist who is responsible for the murder of thousands of men, women and children," Obama said.