'Tormented' Oscar Pistorius Weeps, Retches in Court

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Double-amputee Olympian Oscar Pistorius got emotional in the dock on Monday as more graphic images of the night he killed his girlfriend were shown in court.

Earlier, his defense called pathologist Jan Botha to the stand. The athlete admits shooting Reeva Steenkamp, 29, but maintains it was a case of mistaken identity.

Reeva Steenkamp was shot at Oscar Pistorius' home in Pretoria, South Africa, on Feb 14, 2013.Mike Holmes / Gallo via Getty Images, file

Pistorius, 27, is accused of the premeditated killing of the model and law graduate. The sprinter insists he thought she was an intruder when he opened fire through a bathroom door on Feb. 14, 2013.

The trial continues.