South Africa's Oscar Pistorius starts his men's 400m round 1 heats at the London 2012 Olympic Games at the Olympic Stadium in this August 4, 2012 file photo. South African paralympic star Oscar Pistorius is being questioned by South African police for shooting his girlfriend, domestic media said on February 14, 2013. Johannesburg's Talk Radio 702 said Pistorius was understood to have shot his girlfriend in the head and arm, although the circumstances surrounding the incident were unclear. He may have mistaken her for a burglar, the radio report said.  [Photo/Agencies]