Webdna testing has led members of the san diego county sheriff's department homicide unit to finally identify the body of a woman who was found dead in. Websan diego county, calif. — a cold case murder solved nearly 41 years later but the victim’s parents say they still want answers. May 2, 1988, diane dahn was found dead in her. Webauthorities said wednesday they have solved the 1988 killing of a san diego county woman, but the suspect died in an indiana house fire two decades ago. Webadvanced dna testing and genetic genealogy allowed san diego authorities to identify a murder victim's remains as maria pilar del gadillo carrillo in february. Webon april 2, 1977 frank was found stabbed to death in a room in the back of the store. Detectives swept the crime scene, pulling fingerprints and finding a rare hat. Webthis technique combines the science of dna with the art of genealogy. In this case, the goal was to find relatives whose own dna profile matched those of an.