The Newport Beach Police Department announced Aug. 9 they solved a 1980 cold case murder of an Irvine resident using cutting-edge developments in genetic genealogy and forensic crime solving. On Nov. 26, 1980, 42-year-old Judy Nesbitt was showing her family’s boat, called the “Felicidad IV”, to a potential buyer when the suspect, now identified as Kenneth Marks, attacked Nesbitt in the sleeping quarters of the boat. After a violent struggle, the suspect shot the victim in the head. Marks then stole her credit cards, checkbook, and cash before leaving the scene, police said. Marks would not be identified as the murderer before his own death due to cancer in 1999, according to his obituary. However, Marks’ hairs were collected as evidence at the crime scene, and a limited DNA profile extracted from the roots of the hairs was entered into the FBI’s system, although the profile had no matches in …