The defense will have to convince a judge that Van Steenkamp 's death was n't murder . Did Oscar Pistorius know his girlfriend was behind a door when he shot and killed her ? I have limited mobility on my stumps . '' And if he did not , did he act as a reasonable person would have ? Experts in psychology , sociology and psychiatry expected to try to support Pistorius ' story .
The defense will have to convince a judge that Van Steenkamp 's death was n't murder . Did Oscar Pistorius know his girlfriend was behind a door when he shot and killed her ? And if he did not , did he act as a reasonable person would have ? Experts in psychology , sociology and psychiatry expected to try to support Pistorius ' story .