MOST WANTED: Ayman Al Zawahri, the Egyptian-born doctor-turned-terrorist who assumed the leadership of Al Qaeda after the death of Osama bin Laden was killed in a US drone strike in Kabul, Afghanistan, over the weekend, according to US officials. Zawahri, 71, was one of the world’s most wanted men and was thought as among the masterminds of the Sept. 11 attacks in 2001.