Oscar Pistorius.Paralympic and Olympic star Oscar Pistorius has allegedly shot dead his girlfriend Reeva Steenkamp after mistaking her for an intruder as she tried to surprise him for Valentine's Day..STOCK IMAGE: attended the BT British Olympic Ball, Grosvenor House Hotel, Park Lane, London, England, 30th November 2012..full length black suit tie white shirt .CAP/CAN.©Can Nguyen/Capital Pictures.