relentless in pursuing answers for victims' families. >> she could have been a very, very good detective. like "columbo," peter falk, one more question. one more question. it's like, please be done. please be done. please don't ask any more. >> wear your heavy coat, please. >> okay. >> but at home, she's like any mother, a worrier. >> bye, mom. >> maybe even more protective because of the danger she sees every day at work. >> a job like this makes you more aware of hazards, risks, and worst-case scenarios than if you work in a library or a law office. >> as she arrives at the morgue, dr. corey knows exactly what's in store for her. >> i pretty much know what i'm going to do. you know if you have a gunshot wound case that you're going to be doing x-rays. >> from the start, dr. corey is