He appeared invincible. The ruthless mastermind behind the Sept. 11, 2011, terrorist attacks that killed 3,000 Americans eluded capture for almost 10 years. But that changed on May 1, 2011, when U.S. Navy SEALS killed Osama bin Laden in a compound in Pakistan.
On Sunday, shouts of joys and cheer rang out across the nation as President Barack Obama made the late-night announcement. But social media actually upstaged President Obama as Twitter sent out the first death notices.