>> reporter: david yelled at him to check on jill, his daughter, in the bronco and nelson says he made his way carefully to the vehicle. like david, he was a former state trooper and knew that crime scenes had to be preserved. >> i, i looked in the back seat and that's when i saw little jill back there. i reached back and i touched her arm or shoulders, something and i said, "jilly jilly jilly." >> you knew she was gone? >> i knew she was gone. and i said, "dave, i -- i think they're all gone, buddy." "i think they're all gone." >> reporter: david lost it. >> he actually went down to the ground, was layin' on his back and rollin' around and sayin', "why?" "why'd i have to go?" "why'd i have to go?" "why not have stayed with 'em?" >> reporter: uncle nelson managed to get david away from the garage.