Earlier this year , the world learned that Oscar Pistorius , a white South African Olympian , was so filled with a `` sense of terror '' at the prospect of an intruder in his bathroom on Valentine 's Day eve that he , in a panic , blasted four gunshots through the door before realizing that he had killed his model girlfriend , Reeva Steenkamp . Oscar Pistorius was charged with murder after killing his girlfriend in their home . Ron Irwin : Walled complexes like Barnes ' home are popular across South Africa . He believes living behind high walls changes people 's attitudes about security . Irwin : Residents tend to be more careless and casual when they live in a block of concrete .
Oscar Pistorius was charged with murder after killing his girlfriend in their home . Ron Irwin : Walled complexes like Barnes ' home are popular across South Africa . He believes living behind high walls changes people 's attitudes about security . Irwin : Residents tend to be more careless and casual when they live in a block of concrete .