he was the only person of interest in the killing of gabby petito and now a waterlogged notebook found near brian laundrie's remains might be the only thing that could answer some key questions. investigators say the notebook is possibly salvageable and they're letting it dry out before opening it. at the same time, the forensic anthropologist is studying laundrie's remains, trying to find out how he died. in a new interview, the family attorney is revealing what could be critical clues about the last moment he was seen alive. >> brian had been extremely upset. chris and roberta were very concerned about him. they expressed to me when he walked out the door that evening, they wished they could have stopped him. prevented him from going out, but he was intent on leaving and chris said to me, you know, in hindsight, i know i couldn't stop him. i just wish i could have. >> did brian tell the laundries anything about what happened to