well, when detectives ryan and hittle heard that, they were on the plane to alaska within hours.oman explained she and josh had been engaged at the time of brandy's death. but he had commitment issues. >> he lied all the time. he was dating multiple people at the same time. >> reporter: she had the detectives undivided attention as she related what an intoxicated josh told her on the fourth of july. >> and he told me -- the same that happened to brandy would happen to me. >> did he say happened to brandy? >> he kill her. he kill her. >> he said, "i killed her--" >> yes. yes. >> do you remember what his exact words were? >> he said that -- he killed brandy with a phone call. and i believe everything he said. i believe that he killed her and i was so afraid. >> did he say who -- killed brandy? >> he said it's a black guy at the gym that was in his group of people. >> reporter: it looked as though the detectives were ready to put a bow on their investigation. take the blizzard of messages between the two men, mix in the geography of the cell phone towers that put a suspect burner ph