(AGI) Pretoria, Sept 12 - Olympic champion Oscar Pistorius hasbeen found guilty of the culpable homicide of his girlfriendReeva Steenkamp. The paralympic athlete said he shot his modelgirlfriend by mistake because he thought she was an intruder onFeb. 14, 2013. He faces a prison sentence of up to 15 years,but Judge Thokozile Masipa could release him on probation. Thesentence will be issued later, reported CNN. (AGI) .