Oscar Pistorius has been greatly affected by his disability, a sports doctor has told his murder trial.
Dr. Wayne Derman told the court in Pretoria that Oscar Pistorius suffered “significant stress and anxiety”.
Oscar Pistorius, 27, says he shot Reeva Steenkamp after mistaking her for an intruder in their house last year.
The prosecution argues that the Paralympic champion killed his girlfriend deliberately after a row.
At issue is Oscar Pistorius’ state of mind at the time of the shooting.
On Monday, the court heard he was not suffering from a mental disorder when he shot Reeva Steenkamp.
According to a psychiatrists’ report, Oscar Pistorius is capable of distinguishing between right and wrong and so should bear criminal responsibility for his actions.
The court also heard a psychologist’s assessment on Wednesday which found that Oscar Pistorius had PTSD since the shooting and could be a suicide risk.
It found he was mourning Reeva Steenkamp, a model and law graduate.
Oscar Pistorius’ lawyer, Barry Roux, has argued that his client would react more sharply to fear than an able-bodied person would because of the anxiety caused by his disability.
Wayne Derman, a professor of sports and exercise medicine at the University of Cape Town, was the final witness called by the defense.
Dr. Wayne Derman said Oscar Pistorius had had a “lifetime of real and learnt vulnerability” as a result of his disability. Disability, he said, had a “knock-on” effect through one’s entire life.
“Disability never sleeps.”
Oscar Pistorius, the professor added, also had a “profound fear of crime”.
The athlete, Wayne Derman said, had developed an “exaggerated fight response” and this was responsible for the “horrific tragedy” of Reeva Steenkamp’s death.
Oscar Pistorius says he fired multiple shots into a toilet cubicle where Reeva Steenkamp was, while in a state of panic.
The athlete and Reeva Steenkamp, 29, had been dating for about three months before the shooting.
Oscar Pistorius has often displayed his emotions during the trial, including breaking down in tears in court.
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