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 was found dead on a hallway floor near her classroom at a San Jose high school on June 16, 1978, according to the Santa Clara County District Attorney's Office.

Diane Peterson was found dead on a hallway floor near her classroom at a San Jose high school on June 16, 1978, according to 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.

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 was stabbed to death by a 16-year-old boy, Harry “Nicky” Nickerson, on June 16, 1978, the Santa Clara County District Attorney’s Office said.

Diane Peterson was found dead on a hallway floor near her classroom at a San Jose high school on June 16, 1978, according to 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 ...