PRETORIA, South Africa (AP) — What exactly was Oscar Pistorius doing in the moments before he fatally shot his girlfriend in his home?

Was he, as the double-amputee Olympian testified Friday, hobbling fearfully on his stumps with his pistol down a passageway from his bedroom toward the bathroom after hearing a possible intruder there? Or, as the chief prosecutor contended, was he instead angrily pursuing his girlfriend in the midst of an argument?