and jordynn says he remained focused on his kids.hy (voiceover): but the ongoing investigation took its toll on dave and rosemary's marriage. i said, i can't do this anymore. and he said, ok. he asked if there was anything that he could do. and i said, i don't think so. dennis murphy (voiceover): by 2007, they'd divorced and moved on. rosemary worked as a radio disk jockey, supporting her family, including her adoptive daughter, jordynn, who lived primarily with her. dave was promoted to fire department captain. he earned it. it was not given to him. he earned it. dennis murphy (voiceover): time, as it tends to do, kept moving on. but here in the cold case vault sat those three cases-- linda, who was officially declared dead in 2006, marilyn, and renee. i think my biggest concern was always them being forgotten. dennis murphy (voiceover): linda's friend, marnel, did what she could to keep that from happening. for years, i sent letters to all the media, just saying, here's the story. i was always just shocked that there wasn't outrage