Investigators have solved the cold case murder of a San Jose teacher stabbed to death at Branham High School nearly 50 years ago, naming a teenager who was originally suspected in the crime as the ...

The 1978 cold case murder of California high school teacher Diane Peterson, who was stabbed to death, has been solved this year, officials confirmed.

The Peterson case is the fourth cold case homicide solved by the office in 2025. A family member of the teacher said, “Diane was a beautiful and wonderful person who is missed dearly.” Tags ...

San Jose cold case: Family confession solves 1978 fatal teacher stabbing, authorities say A then-16-year-old student, who is now dead, is officially named as the killer of Diane Peterson near her ...

Branham High School teacher Diane Peterson (Image courtesy the Peterson family via SCCDAO) Investigators cracked the cold case after meeting with Nickerson’s family member this year, according ...

Nearly 50 years after teacher Diane Peterson was found stabbed to death at a San Jose school, investigators say they have solved the cold case. 24/7 Live San Francisco East Bay South Bay Peninsula ...