PRETORIA, South Africa (AP) — Prosecutors in Oscar Pistorius’ murder trial have dropped their assertion that the double-amputee Olympian was wearing his prosthetic legs when he shot girlfriend Reeva Steenkamp in the early hours of Valentine’s Day last year, losing a key part of their argument that the killing was premeditated.

A look at five things we now know about the circumstances of the shooting after a week-and-a-half of testimony in Pistorius’ gripping — and at times intricate — trial: