JOHANNESBURG, South Africa — Oscar Pistorius is selling the house where he killed Reeva Steenkamp to raise money for his legal bills, the athlete’s lawyer said Thursday.Pistorius has not returned to the upscale Pretoria villa since the day he shot his girlfriend in a bathroom over a year ago and “cannot contemplate ever returning to live there again,” lawyer Brian Webber said. Pistorius had planned to keep his home “sealed” until after his ongoing murder trial, Webber said, but it is now necessary to sell it to fund his defence because the double amputee’s trial will last longer than the initial three-week period that was predicted.“Due to the delay in finalizing the trial, the decision to urgently dispose of his single biggest asset has had to be made,” Webber said in a statement.