In an electric exchange in Pretoria High Court, Gerrie Nel, one of South Africas top attorneys, said it was beyond belief that 29-year-old graduate-model Reeva Steenkamp would have remained silent in the tiny cubicle with an armed Pistorius shouting and screaming in the adjoining bathroom.
Pistorius, who says he fired at what he thought was an intruder, said Steenkamp did not scream at any point in the incident in the early hours of Feb 14, 2013 a central pillar of his defence.
However, under withering questioning, the 27-year-old was forced to concede that he may not have heard her cries because of his ears ringing from the first shot.
Several people living nearby have testified to hearing a womans screams before and during a volley of shots.
Shes awake. Shes in the toilet. Youre shouting. Youre screaming. Youre 3 m away. She would have responded. She would not have been quiet, Mr Pistorius, Nel said.
She didnt respond, my Lady, a clearly distressed Pistorius replied, addressing judge Thokozile Masipa.
Did she scream at all whilst you shot her four times Nel continued. No, my Lady.
Are you sure Are you sure, Mr Pistorius, that Reeva did not scream after the first shot Nel continued. Are you, Mr Pistorius
After a brief silence to collect himself, he said: My Lady, I wish she had let me know she was there.
After you fired the first shot, did she scream Nel asked.
No, my Lady.
How can you exclude the fact she was screaming if you couldnt hear Nel asked.
If I couldnt hear it then I couldnt hear, he retorted.
No, you said, Mr Pistorius, she never screamed. You couldnt hear. Youre just saying that, Nel said.
My Lady, the sound of that gunshot in the bathroom, you wouldnt have heard anyone scream. The decibels of the gunshot, I dont believe you would have heard anyone scream. When I had finished firing the gunshots, I was screaming and I couldnt hear my own voice.
Nel later followed up with his central accusation that the couple had an argument and Steenkamp fled to the toilet pursued by Pistorius, who then shot her through the closed wooden door.
You knew that Reeva went behind the door and you shot at her, Nel said. You shot at her knowing she was behind the door.
Pistorius denied it, his voice wavering with emotion, before court adjourned until Monday morning.