The United States killed al Qaeda leader Ayman al-Zawahiri in a drone strike, according to multiple sources familiar with the matter.<br />Zawahiri, who just turned 71 years old, had remained a visible international symbol of the group, 11 years after the US killed Osama bin Laden. At one point, he acted as bin Laden's personal physician.<br />The US government has not yet confirmed his death. #thesituationroom #CNN #News
