couldn't have been her rifle that killed bruce dodson. >> dr. canfield was convinced the shooting was no accident. >> i was able to conclude, beyond a reasonable doubt and with reasonable medical certainty, that bruce died from was clearly a homicide., and it >>> the autopsy revealed bruce dodson had been hit with three shots. >> we didn't know if we had some maniac in the woods with a rifle, just randomly shooting someone. >> investigators found a clue in a fence post near bruce's body. it was a fresh bullet hole. so they used a string to perform a trajectory analysis. >> we began where the victim was located, at the approximate height of the wounds, and went back to the fence post. and then continued to string that back toward the area that the shot was fired. >> in a clump of bushes, 80 yards in front of the fence post, investigators found a .308 caliber shell casing. to find the bullet that went through bruce's chest, investigators searched the area in the straight line path beyond where bruce was standing. with a metal detector, miraculously

she assassinated bruce dodson. he didn't even have a chance. i wouldn't call her a black widow. i would call her a greedy assassin. >>> a murder victim's son was the first to suspect that his mother's death was the work of a serial killer. investigators hoped that cells found on a styrofoam cup, marks on a water faucet and clues on a videotape would help police find the man who alluded police for over a decade. by 1991, 42-year-old nancy ludwig found what she was looking for in life, a husband who adored her and a career in the airline business. >> she had always wanted to be a flight attendant, since when she was a young girl. very outgoing, spontaneous, adventuresome. that's why she made such a good flight attendant. >> during one of her out-of-town trips, an airline employee called art ludwig with some bad news. >> it was some woman explained to me that there had been a problem in detroit and i should get myself ready and get out there at the airport and they would meet me there and we would fly to detroit. >> nancy ludwig was found dead in her hotel room near the detroit air