South African Paralympic sprint star Oscar Pistorius says he's consumed with "sorrow" as he marked one year since he shot dead his model girlfriend on Valentine's Day in what he maintains was an accident. The world-famous double amputee, 27, shot Reeva Steenkamp through his toilet door, claiming he mistook her for an intruder at his upmarket Pretoria home. He goes on trial for premeditated murder on March 3.VIDEOGRAPHIC
