Mr. Pistorius said he and Ms. Steenkamp had gone to bed early on Wednesday night, but in the middle of the night he heard a noise from the bathroom and went to investigate on his stumps, not his artificial legs.
He was nervous, he said, because the bathroom window did not have burglar bars and contractors who had been working there had left ladders behind.
The room was dark, he said, and he did not realize that Ms. Steenkamp was not in bed. He felt vulnerable and fearful without his prosthetics and opened fire at the door, he said, calling to Ms. Steenkamp to telephone the police.
Only then did he realize that she was not in bed, he said. He put on his artificial legs and tried to kick down the door before breaking it open with a cricket bat to discover Ms. Steenkamp.
He carried her downstairs, he said, and “she died in my arms.”