Transcript for Doctor Describes Pistorius Shooting Scene
We're all well beyond it. Lease move on. The latest on the murder trial of paralympic Oscar Pistorius. Hamish Macdonald joins us from Pretoria. Good morning, hamish. Reporter: The most emotionally charged moment of the trial so far. Oscar Pistorius, members of his family openly sobbing, some of them shuddering in the court as we heard from a doctor who was among the first on the scene and describes seeing reeva steenkamp slumped lifeless body, her pulls fixed and die laid while Oscar Pistorius had his fingers in the mouth trying to keep the air passage open. This morning, dramatic and graphic eyewitness testimony in the case against Oscar Pistorius for the murder of reeva steenkamp. The olympic star was left in tears. He said, I shot her. I thought she was a burglary and I shot her. Reporter: Holding what appeared to be a sick bag, Pistorius looked as if he might throw up during the testimony of Johan Stipp, a doctor and neighbor who described what he saw at the scene of the shooting and what he heard minutes before. Right on top of each other, bang, bang, bang. Reporter: Earlier Charlton Johnson, a neighbor who says he too heard a woman screaming moments before gunshots. I would be able to identify the sound of a gunshot. Reporter: But Pistorius' defense says that's not possible. A time line of events which show the loud bangs were Oscar Pistorius using a cricket bat to bash down the toilet door, once he realized it was his girlfriend and not an intruder. Never heard cricket bat striking such force it broke the door, have you? Reporter: It was on this day that Oscar Pistorius was 15 that his mother passed away. It is clear that for him his entire family this day is traumatic, not to mention for the family of the victim, reeva steenkamp. George.
This transcript has been automatically generated and may not be 100% accurate.