Olympic and Paralympic track star Oscar Pistorius looks on during the fourth day of his trial for the murder of his girlfriend Reeva Steenkamp. REUTERS/Marco Longari/Pool

Video footage shot during day four of the Oscar Pistorius murder trial. Pistorius, a Paralympic and Olympic athlete, is on trial for murder after the fatal shooting of his girlfriend, Reeva Steenkamp, on Valentine’s Day 2013.