South African track star Oscar Pistorius wipes his face during his trial in Pretoria on Monday. The 27-year-old grew emotional as he apologized to the family of girlfriend Reeva Steenkamp. Pistorius is charged with murdering her. Themba Hadebe/AFP/Getty Images hide caption

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Accused South African Paralympic athlete Oscar Pistorius in court on Monday in Pretoria. He's accused of premeditated murder in the death of his girlfriend on Feb. 14, 2013. Herman Verwey /EPA/Landov hide caption

itoggle caption Herman Verwey /EPA/Landov

South Africa's Oscar Pistorius competing during the London 2012 Paralympic Games. Glyn Kirk /AFP/Getty Images hide caption

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Oscar Pistorius as he entered a court in Pretoria on Thursday. Mike Hutchings /Reuters /Landov hide caption

itoggle caption Mike Hutchings /Reuters /Landov

South African Paralympic and Olympic sprinter Oscar Pistorius as he wept today while being charged with murder. Antoine De Ras /EPA /LANDOV hide caption

itoggle caption Antoine De Ras /EPA /LANDOV

Bronze medalist Arnu Fourie of South Africa (from left), gold medalist Jonnie Peacock of Great Britain, silver medalist Richard Browne of the United States and Oscar Pistorius of South Africa cross the line in the Men's 100m - T44 Final at London's Olympic Stadium. Jamie McDonald/Getty Images hide caption

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In a surprise finish, Brazil's Alan Fonteles Cardoso Oliveira (left) races past South Africa's Oscar Pistorius to win a gold medal in the 200-meter race at the 2012 London Paralympic Games. Emilio Morenatti/AP hide caption

itoggle caption Emilio Morenatti/AP

Oscar Pistorius of South Africa runs in the men's 200-meter event at the Paralympic World Cup in May. Some observers have suggested Pistorius receives an unfair advantage from his carbon-fiber "blade" legs. Michael Steele/Getty Images hide caption

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