That gray-streaked beard was always misleading, as were the reports of his frailty and dependence on medical care: when he was shot to death in Abbotabad, Osama bin Laden was only 54 years old. On September 11, 2001, he was an almost inconceivably youthful 44.
Our young president, Barack Obama, was only 40 then. Here are some other public figures, and the ages they were that day.
