In January 2011, years of pent-up anger and frustration erupted across North Africa and the Middle East.

BBC: Hillary Clinton: A long journey

He unloaded "pent-up anger" that had built up over time -- against Savio and her family, the legal process, the media, even a TV movie about the case, according to his attorneys and the prosecutor.

CNN: STORY HIGHLIGHTS

Wes Wilhite, the company commander, says he knows a lot of his soldiers have "some form of pent-up anger in them, but at the same time they are trained" to deal with the loss of comrades.

CNN: Pressing on at war when 'good men' die