Editor's Note – National Geographic

Sometimes it takes the worst to see people at their best. For Bobby Model, a photographer who has worked for this magazine and a world-class climber, the worst happened two years ago while traveling in Cape Town, South Africa, with his sister, Faith. A concrete block crashed through the windshield and struck his head, causing massive brain injuries. Doctors doubted he would survive. Though never solved, the case was investigated as an act of random violence. That’s the darkest side of humanity.

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