"A bittersweet justice." DNA technology continues to crack decades-old crime mysteries like the 1976 murder of Karen ...

Richard Sommerhalder, convicted of two murders in the 1970s, has been identified as the killer of Karen Percifield in 1976. Advanced DNA testing by Othram linked Sommerhalder to Percifield's death ...

APTOS — After remaining unsolved for nearly 50 years, the Santa Cruz County Sheriff’s Office has identified 25-year-old Karen Percifield’s killer through the use of genetic genealogy and ...

It was determined the woman was the victim of a homicide and she was later identified as 25-year-old Karen Percifield. While detectives collected forensic evidence at the time of the initial ...

Karen Percifield was found dead near Aptos Village Park on May 28, 1976, Santa Cruz County deputies said. Photo from Santa Cruz County Sheriff's Office Nearly five decades after a 25-year-old ...

A notorious California killer has been named as a suspect in the 1976 murder of a woman in Aptos, the small seaside town bordering Santa Cruz. In May 1976, Karen Percifield, 25, was in ...