And now, we want to take you inside the south african courtroom. An emotional day of testimony in the Oscar Pistorius trial. A witness breaking down on the stand, while the olympic athlete covered his... See More
And now, we want to take you inside the south african courtroom. An emotional day of testimony in the Oscar Pistorius trial. A witness breaking down on the stand, while the olympic athlete covered his ears as if to muffle the testimony. ABC's hamish Macdonald was there. Reporter: You can't see this witness. She's been promised her face won't be shown on television. It's her second day of tough and relentless questioning. This is the moment she breaks. It was quite raw still. It was quite? Raw. The emotion. Reporter: She says the scream she heard in the early hours of Valentine's day last year were blood-curdling. They were followed by four gunshots. Bang. Bang, bang, bang. Reporter: But the team defending Oscar Pistorius rejects that account. They say he, too, could sound like a woman when he screams. And the witness is confused about what she heard first. Screaming or gunshots. The total impact of that shots would not have allowed her to scream. Reporter: This man is a hero to many in South Africa. The disabled boy, who grew up to become the blade runner. He looked to have it all, including the model girlfriend. Until that tragic night last year. With big delays, mistakes in translations and an unhappy judge, there's big pressure to prevent this trial from descending into chaos. The proceedings are set to last another three weeks. Hamish Macdonald, ABC news, Pretoria.
This transcript has been automatically generated and may not be 100% accurate.