Examining the cases of Lynn Breeden, Peggy Laughlin and Lisa Tsu, and the important role DNA played in SOLVING them. Join forensics experts and criminal investigators to solve the case. #NewDetectives #TrueCrime #DNA Season 2 Episode 3, aired in 1997: With DNA analysis just a few microscopic cells found at a crime scene can be used to convict a killer. Forensic scientists can analyze droplets of blood, hair fiber, or a piece of chewed gum to determine the identity of a victim or killer -- or to