3:00 How to Research a Cold Case - Getting Started 3:06 DNA credited for solving 30-year-old Roswell cold case 9:27 48-Year Cold Case Solved: Navy Recruit's Dark Secret Exposed 9:58 Undercover Agents Expose Murder-for-Hire Plot 15 Years Later | Cold Case Files | A&E 10:09 Surprising Tactic Lures Suspect to the Police Precinct | Cold Case Files | A&E