NEW : ` ` He definitely wanted her to live , ` ` witness says about Oscar Pistorius . He says he thought Reeva ##n had been mortally wounded . The amputee sprinter , 27 , nicknamed `` Blade Runner , '' has pleaded not guilty to all four counts against him , saying the killing of model Reeva Steenkamp , 29 , was a tragic error and he mistook her for an intruder . ` ` I thought she was a burglar and I shot her , '' witness quotes Pistorius as saying . Defense attorney grills another witness on notes taken of fatal wounds .
NEW : ` ` He definitely wanted her to live , ` ` witness says about Oscar Pistorius . He says he thought Reeva ##n had been mortally wounded . ` ` I thought she was a burglar and I shot her , '' witness quotes Pistorius as saying . Defense attorney grills another witness on notes taken of fatal wounds .