his name was bill mclaughlin, 55 years old. nice guy, deeply religious. and a true believer in the american dream. a man who had made his to come through. kind of a self made guy, right? >> absolutely. yes. >> bill, said his daughter jenny, was the first in his family to go to college. the first to found a company. first to end up with millions. . . >>. . >> you could tell, said voth, bill mclaughlin saw a coming. saw his. color >> one if his movements was to put his hand up and try to block a shot. he got shot through. the underside of a finger. so, he saw his attacker. >> now voth needed to figure out who was that last person bill mclaughlin saw? >> you are trying to take everything in and you're trying to remember as much as you can. right down what you feel is important. what is going to come up in the investigation. >> what was important, what was in? it was hard to know in those first few hours. as you can see in this video, the police shut the night of the murder, a house was as neat as a pin. except for a glass on a peep table. some tables askew un