night. here is josh mankiewicz. reporter: sometimes the tracks are as clear as the sky, but other times you need to know where to look to see the truth. this man has made a career of noticing what others do not. what is his reputation? meticulous investigator. just pours over the volumes of evidence and finds things that other investigators do not find. reporter: the evidence whisperer. correct. that night i went out dancing. reporter: does this man act guilty? does he know more than he s saying? i didn t know anything was going on. all right. i just heard lynsie. reporter: what about this man? can you believe the story he s telling? i was supposed to pick her up twice, she was so out of character, she didn t show up on either day. reporter: the evidence whisperer wasn t at either of those interviews. but watching them helped him solve the mystery of what happened to a vivacious young
this man has made a career of noticing what others do not. what is his reputation? meticulous investigator. just pours over the volumes of evidence and finds things that other investigators do not find. reporter: the evidence whisperer. correct. that night i went out dancing. reporter: does this man act guilty? does he know more than he s saying? i didn t know anything was going on. all right. i just heard lynsie. reporter: what about this man? can you believe the story he s telling? i was supposed to pick her up twice, she was so out of character, she didn t show up on either day. reporter: the evidence whisperer wasn t at either of those interviews. but watching them helped him solve the mystery of what happened to a vivacious young woman, and bring answers to the mother who loved her. i was always proud of her. she was a real fighter.