At the 2012 London Olympics, before 80,000 roaring fans and a constellation of camera flashes, Oscar Pistorius took 45.44 seconds to become a global icon. The South African’s 400-meter sprint was the first time in history that a double-amputee had raced at the Olympic Games, and it seemed to embody the very best of sporting endeavor and the human spirit. But less than six months later, Pistorius was found guilty of premeditated murder for shooting dead his girlfriend Reeva Steenkamp
