Ferguson, Mo.: 12 days of violent unrest on Twitter

Since a police officer shot and killed Michael Brown, an unarmed teenager, in Ferguson on Aug. 9, this suburb of St. Louis has been roiled in strife — from looting to national rallies to police arresting journalists to a state of emergency.

This story was originally published August 14, 2014 at 10:00 AM with the headline "Ferguson, Mo.: 12 days of violent unrest on Twitter."