South Africa's double-amputee sprinter Oscar Pistorius, at a news conference in Pretoria, South Africa, Friday, Jan. 11, 2008. Pistorius said that he will appeal "at the highest levels" if the IAAF bars him from competing in the Beijing Olympics on grounds that his prosthetic racing blades give him an unfair edge.WALDO SWIEGERS/The Associated Press
South African Oscar Pistorius puts on his running blades during a training session for the international European Athletics Association (EAA) athletics meeting in Lucerne July 15, 2008.MICHAEL BUHOLZER/Reuters
South Africa's double-amputee sprinter Oscar Pistorius is seen at the start of the men's 400 meters race at the Track and Field Golden Gala meeting in Rome's Olympic stadium, Friday, July 11, 2008.ANDREW MEDICHINI/The Associated Press
Oscar Pistorius of South Africa prepares for the men's 400 metres semi-final at the IAAF World Championships in Daegu August 29, 2011.DAVID GRAY/Reuters
South Africa's Oscar Pistorius during a training session at Mayesbrook Park Arena, Barking, England, Monday Aug. 27, 2012.Chris Radburn/The Associated Press
In this Wednesday, Sept. 5, 2012 file photo, South Africa's Oscar Pistorius competes during Men's 100m T44 round 1 at the 2012 Paralympics in London. Olympic sprinter Oscar Pistorius has been arrested after a 30-year-old woman was shot dead at his home in South Africa.Emilio Morenatti/The Associated Press
In this Saturday, Sept. 8, 2012, file photo, Gold medalist South Africa's Oscar Pistorius poses with his medal during the ceremony after winning the men's 400 meters T44 category final during the athletics competition at the 2012 Paralympics, in London.Matt Dunham/The Associated Press
A Nov. 4, 2012 photo shows South African Olympic athlete Oscar Pistorius and Reeva Steenkamp, believed to be his girlfriend, at an awards ceremony in Johannesburg.Lucky Nxumalo-Citypress/The Associated Press
Oscar Pistorius (R) and his girlfriend Reeva Steenkamp pose for a picture in Johannesburg, February 7, 2013.Thembani Makhubele/Reuters
A police vehicle enters the housing estate where Olympian Oscar Pistorius lives, in Pretoria, South Africa, Thursday, Feb. 14, 2013. Reports say that a 30-year-old woman was shot dead at Pistorius's home earlier after being mistaken for an intruder.Str/The Associated Press
This aerial image taken from video provided by VNS24/7 on Thursday Feb. 14, 2013, shows the home of Olympic athlete Oscar Pistorius in a gated housing complex in Pretoria, South Africa.Uncredited/The Associated Press
Olympic athlete Oscar Pistorius leaves the Boschkop police station, east of Pretoria, South Africa, Thursday, Feb. 14, 2013, en route to appear in court charged with murder.Chris Collingridge/The Associated Press
Oscar Pistorius, centre, is led from the Boschkop police station east of Pretoria, en route to court, Feb. 15, 2012.The Associated Press
South African "Blade Runner" Oscar Pistorius is escorted by police at a Pretoria police station Feb. 14, 2013. Pistorius, a double amputee who became one of the biggest names in world athletics, was charged on Thursday with shooting dead his girlfriend, model Reeva Steenkamp, at his upscale home in Pretoria.Stringer/Reuters
Oscar Pistorius weeps in court at his bail hearing in the murder case of his girlfriend Reeva Steenkamp, in Pretoria, South Africa, Feb 15, 2013.Antione de Ras/Independent Newspapers Ltd. South Africa/The Associated Press