you live it. >> reporter: lisa techel was dead, murdered in her own bed. band seth was outside, shirtless and barefoot. when lisa's little sister presley arrived, all she could do was try to comfort him. >> by the time i got there, they had stuff taped off. and i went up and i just gave seth, like, the longest -- it seemed like the longest hug ever. >> your best friend. >> yup. >> reporter: seth was inconsolable, and acting out. >> i went over to him when i first got there and i tried hugging him. he pushed me away. he punched his truck, and i said, "don't do that, seth, you know, let me see your hand." >> reporter: todd offered to take seth back to his house, but doug techel knew this was a moment his son should be with him. >> it was just bad. i mean, it -- he was sobbing. and we just hugged and cried. >> reporter: marty wonderlin, working his first homicide, was the first deputy to speak to seth. how'd that go? >> you know, i ask him what happened. >> i came running out. and i looked in the bedroom and she's laying there. >> reporter: through the overwro