Pistorius 'besotted' with girlfriend

South African athlete Oscar Pistorius is giving evidence at his murder trial for a second day.

He has been answering questions about his relationship with his girlfriend Reeva Steenkamp.

The athlete denies deliberately shooting dead Ms Steenkamp in his home on Valentine's Day last year, arguing he mistook her for an intruder.

Karin Giannone reports from Pretoria.