The cold case was assigned to Detective Mark ... Williams declined to identify the suspect because he has not yet conclusively solved the case. The suspect has confessed to killing three people ...

Between 2023 and 2024, the DA’s Crime Lab conducted extensive DNA work on the case in an attempt to identify Peterson’s killer. Unlike other recently-solved cold cases in the area, forensic ...

The 1978 cold case murder of a California high school teacher who was stabbed to death has been solved nearly five decades later, officials confirmed. Diane Peterson was found dead on a hallway ...