julie schenecker , 54 , was convicted last may of shooting her son beau , 13 , and daughter calyx , 16 , in their upscale tampa bay , florida home in january 2011 .
now in an exclusive jailhouse interview , she has claimed she pulled the trigger to ` save ' her children , despite previously admitting to authorities that she had shot them for being ` mouthy ' .
when asked by abc action news in the interview if she regretted the shooting , schenecker , a former military linguist , shook her head .