Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Decades after Diane Peterson’s 1978 killing at Branham High in San Jose, the suspect, Harry Nickerson, has been identified, Santa Clara County prosecutors say.

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Decades after Diane Peterson’s 1978 killing at Branham High in San Jose, the suspect, Harry Nickerson, has been identified, Santa Clara County prosecutors say.

Decades after Diane Peterson’s 1978 killing at Branham High in San Jose, the suspect, Harry Nickerson, has been identified, Santa Clara County prosecutors say.

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...

Diane Peterson, a teacher at Branham High School in San Jose, was stabbed to death by 16-year-old Harry “Nicky” Nickerson on June 16, 1978, the Santa Clara County District Attorney’s Office ...