PRETORIA, South Africa (AP) — The chief prosecutor in the Oscar Pistorius murder trial continued Monday to question nearly every aspect of the Olympian’s story surrounding his fatal shooting of girlfriend Reeva Steenkamp.

Prosecutor Gerrie Nel asked Pistorius exactly what words he used when he claims he was shouting at a perceived intruder on Feb. 14, 2013, what the noise was that he said he heard that made him fire through a toilet door to kill Steenkamp, and how long he held on to his 9 mm pistol for after the shooting.