concealed for decades and thanks to the orange county district attorney's investigative genetic genealogy team known as igg, a connection was made to a las vegas man named reuben jay smith is a possible suspect had been arrested in nevada on another assault case in which he had to give his dna. he committed suicide in 1989, the dna evidence from his arrest and the crimes from the 80s were a positive match. >> this is not the first time the police department has seen success with investigative genetic genealogy. last year, the 1976 homicide of janet's talk up was also sought. >> reporter: she was a 19-year-old nursing student in december of 1976 when she was murdered. it wasn't until last year that the igg team could match dna from the scene to their database and identify a suspect. these phases in orange county add to the work cold cases or with the advanced technology.