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The 1978 cold case murder of Silicon Valley high school teacher Diane Peterson, who was stabbed to death, has finally been solved.
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.” ...
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.” ...
The 1978 cold case murder of California high school teacher Diane Peterson, who was stabbed to death, has been solved this year, officials confirmed.
On Monday, cold case investigators identified her killer publicly for the first time. Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” ...
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. SAN JOSE, Calif.
The 1978 cold case murder of Silicon Valley high school teacher Diane Peterson, who was stabbed to death, has finally been solved.
The 1978 cold case murder of California high school teacher Diane Peterson, who was stabbed to death, has been solved this year, officials confirmed.
Harry Nickerson, who was 16 when, the Santa Clara County District Attorney’s Office said, he killed Diane Peterson at San Jose's Branham High School in 1978, died by suicide in 1993.