NEW : first witness says she was awoken by shouting . NEW : Husband of Second witness also takes the stand Tuesday . Pistorius shot and killed Reeva Steenkamp at his South Africa 's home Tuesday . She answered that she had clearly heard gunshots , testily answering Roux 's questions about how much time had elapsed between them by saying she `` did n't sit there with a stopwatch and take down the timing of each shot . '' The double-amputee Olympic and Olympic sprinter says he mistook her for a burglar .
NEW : first witness says she was awoken by shouting . NEW : Husband of Second witness also takes the stand Tuesday . Pistorius shot and killed Reeva Steenkamp at his South Africa 's home Tuesday . The double-amputee Olympic and Olympic sprinter says he mistook her for a burglar .