Oscar Pistorius, left, in the dock turns back to speak with his uncle, Arnold Pistorius, standing at left, and his brother Carl, standing at right, on the second day of his trial at the high court in Pretoria, South Africa, Tuesday, March 4, 2014. Pistorius is charged with murder for the shooting death of his girlfriend, Reeva Steenkamp, on Valentines Day in 2013. (AP Photo/Kim Ludbrook, Pool)

Oscar Pistorius, left, in the dock turns back to speak with his uncle, Arnold Pistorius, standing at left, and his brother Carl, standing at right, on the second day of his trial at the high court in Pretoria, South Africa, Tuesday, March 4, 2014. Pistorius is charged with murder for the shooting death of his girlfriend, Reeva Steenkamp, on Valentines Day in 2013. (AP Photo/Kim Ludbrook, Pool)