Oscar Pistorius

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Oscar Pistorius, center, accompanied by relatives walks towards the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend Reeva Steenkamp on Valentine's Day in 2013. (AP Photo/Themba Hadebe)

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Oscar Pistorius, middle, accompanied by relatives walks towards the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend, Reeva Steenkamp on Valentine's Day in 2013. (AP Photo/Themba Hadebe)

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Oscar Pistorius' uncle Arnold Pistorius, right, with wife Lois, center, walks towards at the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend, Reeva Steenkamp, on Valentines Day in 2013. (AP Photo/Themba Hadebe)

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Oscar Pistorius, center right, accompanied by relatives walks towards the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend, Reeva Steenkamp, on Valentines Day in 2013. (AP Photo/Themba Hadebe)

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Sister of Oscar Pistorius, Aimee Pistorius, second from right, cries as she listens as her brother testifies in court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with the murder of his girlfriend Reeva Steenkamp, on Valentines Day in 2013. (AP Photo/Siphiwe Sibeko, Pool)

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Oscar Pistorius arrives at the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend Reeva Steenkamp on Valentine's Day in 2013. (AP Photo/Themba Hadebe)

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Oscar Pistorius arrives at the high court in Pretoria, South Africa, Wednesday, April 9, 2014. Pistorius is charged with murder for the shooting death of his girlfriend Reeva Steenkamp on Valentine's Day in 2013. (AP Photo/Themba Hadebe)