man was wrongly accused of being a serial rapist murderer and a mob showed up at his house
http://gizmodo.com/5716595/man-wrongly-accused-of-murder-on-facebook-flees-home-after-an-angry-real-world-mob-shows-up
http://gizmodo.com/5716595/man-wrongly-accused-of-murder-on-facebook-flees-home-after-an-angry-real-world-mob-shows-up