dan nash. time investigator who has been involved in several high-profile murder cases in the ozarks. >> and when sergeant nash took one look at that file, something forensic seemed off. he was inclined to agree with shawn. didn't look like suicide at all. >> he was just struck by the fact that if lisa jennings had shot herself using her right hand that there would be more blowback from that wound than one drop of blood. >> three months after that christmas eve, investigator nash drove over to brad's farm. told him he was looking at the case again. >> and wanted the bath robe that mr. jennings was wearing that night. >> the robe he had on when he said he found lisa dead and held her in his arms. >> why three months later would a bath robe be of any use at all? surely it had been cleaned or something after this event. >> apparently it had not. >> oh. >> mr. jennings had spent little time going back into that bedroom from -- where from his perspective his wife had taken her life. >> so brad gave n