5:34 How Genealogy DNA helped crack 30-year-old, unsolved Texas cold case 10:20 Cold Case Files: 30 Years Later, Son Solves Murder Case His Father Once Worked | A&E 11:43 Cold Case Files: Hunt For Teen's Murderer Uncovers a Serial Killer | A&E 12:11 Cold Case Files: Rookie Detective Finds Clue in a Photo Solving a Teen Murder After 27 Years | A&E 10:35 Murder Investigation Ignited 32 YEARS Later by Cold Case Playing Cards | Cold Case Files | A&E 1:29 Serial Killer Confesses to 1986 Cold Case Murder: Cops