Prosecutor Gerrie Nel seeks to discredit expert defense witness Pistorius . On the stand , the Silver Woods Estate contradicts Roger Dixon testimony over position of magazine rack . The prosecution says Pistorius intentionally shot and killed Pistorius after a fight . Nel then showed him a photo of the toilet with the magazine rack standing in a pool of blood -- and Pistorius said it must have been placed there . Oscar Pistorius ' denies murder , saying he mistook his girlfriend for an intruder .
Prosecutor Gerrie Nel seeks to discredit expert defense witness Pistorius . On the stand , the Silver Woods Estate contradicts Roger Dixon testimony over position of magazine rack . The prosecution says Pistorius intentionally shot and killed Pistorius after a fight . Oscar Pistorius ' denies murder , saying he mistook his girlfriend for an intruder .