might not be his last. >> i'm sure i'll probably never see anything like it again in my career, but i'm ready for it if i do. a beautiful home, an affluent woman, a vicious murder. while her husband mourned, investigators searched for clues. a greetings card, an exotic dancer, and an operating room schedule showed investigators a side of medicine they hadn't seen before. it was valentine's day 2001, and susan hamilton had a busy day planned. her husband, dr. john hamilton, was an obstetrician. susan ran his medical clinical. >> susan hamilton was the