My old friend Mike of the North offers food for that in this entry at his blog Screams from the Wilderness. He reminds us that there is always more to the story.
Of course, we don't condone bloodthirsty violence. But desperate times drive people to desperate measures, and quite frankly, Somalia has seen deperate times so long that Hell probably appears as a distant cloud on the horizon.
Sam Kinison once joked that starving people in Ethiopia should GO WHERE THE FOOD IS!! (his screaming, not mine). Evidently it's not so easy. Some try to make a go of it and bloom where they're planted. I don't condone violence, and the story's resolution certainly is an example of "live by the sword, die by the sword." But is is also important to remember that evil is not always done for it's own sake; there is usually a complex dynamic of different influences at work; social, economic, environmantal; that result in the news of the day.
It's ironic. When you see a picture of a starving, impoverished Somalian, you might think that, among other things, they have to live a simple life. But the harder things get, the more it seems that life is not so simple after all.