Transcript for Blade Runner 'Trial of the Century' in South Africa
on his journey to facing justice. Oscar Pistorius is guided into court past the family of the woman he killed. Reeva steenkamp's mother says she wants to look him in the eye and see the truth. This morning, no eye contact. Pistorius faces four charges and a possible life sentence. How do you plead? Not guilty, milady. This is probably the biggest trial of the century so far. Reporter: The defense claims it was a tragic mistake. Pistorius thought steenkamp was andentrur er R in the home. But prosecutors say it was in if heat of an argument. The prosecution will claim he was reckless and gun happy. New images show him on a gun range shooting the pistol that killed steenkamp. But images also of a flirtatious and stung couple. No matter what happens, his life will never be the same again. Reporter: The trial is due to last three weeks. It could last longer. After spending the last few hours inside that courtroom, it is incredible in there. Reeva steenkamp's family has sat should to should with Oscar Pistorius' family and up in of them are looking at each other. We had a little bit of a
This transcript has been automatically generated and may not be 100% accurate.