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Yahoo
3 days ago
- General
- Yahoo
Grisly 1978 cold-case murder of high school teacher in California solved
Detectives in San Jose say they have solved a grisly 1978 cold-case murder of a high school teacher who was found stabbed to death in the school's hallway with a knife marked 'Teacher Dear.' The violence unfolded on June 16, 1978, at Branham High School, one day after school let out for summer and teachers were breaking down their classrooms for the break. Detectives said a student discovered Diane Peterson on the floor near her classroom suffering from a single stab wound to the chest. Harry 'Nicky' Nickerson, a 16-year-old at the time, was a suspect in the brutal murder. A 1978 photo of Nickerson taken four days after the killing appeared similar to a composite sketch of the suspect based on eyewitness accounts. One of those witnesses told police that Nickerson confessed to the killing and that he had seen him carrying a knife that had the words 'Teacher Dear' written on it. 'Police at that time were unable to corroborate the claim,' officials at the Santa Clara County District Attorney's Office said in a news release. Then, in 1983, family members of a Branham student told investigators that their son claimed to have seen the killing and identified the Nickerson as the one who did it, but the student later denied making that claim. A year later, in 1984, yet another witness told detectives that Nickerson implicated himself in the teacher's murder and that he'd done it because Peterson caught him in the middle of a drug deal. Dating apps tied to U.S. citizens kidnapped in Mexico, officials warn Nearly 40 years later, the district attorney's crime lab conducted extensive DNA testing on the case but was never able to identify the perpetrator, until a family member came forward in 2025. 'The relative admitted to police that Nickerson came to their home minutes after the killing and confessed to having stabbed Peterson,' officials said. Nickerson's life following the murder was a series of run-ins with law enforcement. He was arrested and convicted on charges of armed robbery, assault with a deadly weapon and kidnapping, the release stated. In 1984, he was critically shot during an attempted drug robbery, though he survived the ordeal. Then, in 1993, he took his own life with a self-inflicted gunshot wound, officials said. 'This marks the end of a terrible and tragic mystery. Ms. Peterson would have been a senior citizen today if she had not crossed paths with this violent teenager. I wish she was,' Santa Clara County DA Jeff Rosen said. 'I am pleased that we have solved this case, even though the murderer is not alive to face justice. I wish he was.' Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.


San Francisco Chronicle
3 days ago
- San Francisco Chronicle
A Bay Area high school teacher was stabbed in her classroom in 1978. Police just identified her killer
Recording grades on the last day of the school year nearly 50 years ago, a Bay Area high school teacher was stabbed in the chest by a man police wouldn't be able to find for decades. Diane Peterson, a 26-year-old English teacher at Branham High School in San Jose, had just been told she would be laid off because of dwindling enrollment in the school, newspapers reported in 1978. But she was stabbed in the chest before the day's end. Bleeding profusely from the wound, she ran screaming across the campus for 70 yards before collapsing on the floor. Her colleagues tried to stop the flow of blood, but she died at a local hospital. In the immediate aftermath, police said they were mystified as to a motive and had no suspects. No weapons were found; the only clues were some fingerprints on the doorknob. But on Monday, the Santa Clara County District Attorney's Office announced they had solved the cold case and identified her killer: Harry 'Nicky' Nickerson, a student at the school who was 16 years old at the time. Nickerson was not her student. Nickerson emerged as a suspect in the killing, but for years, police were unable to corroborate witness accounts or develop any usable forensic evidence, district attorney's spokespersons said. A booking photo of the teenager four days after the killing 'bore a strong similarity' to the sketch based on eyewitness accounts of the attack, spokespersons said. Five years later, the family of a Branham student told police that their son claimed to have seen the murder and had identified Nickerson as the murderer — but the student later denied making that statement. The following year, in 1984, a witness told police that Nickerson had 'implicated himself' in the murder, allegedly admitting he killed Peterson after she discovered him in the act of a drug deal. Nickerson allegedly was carrying a knife that had 'Teacher Dear' written on it, a witness said. But with no murder weapon or clear DNA linking him to the crime, police were unable to arrest Nickerson, who in the years following the murder was arrested and convicted of other charges, including armed robbery, assault with a deadly weapon and kidnapping, spokespersons said. In 1984, the same year a witness claimed Nickerson had implicated himself in the shooting, Nickerson was shot and critically injured while attempting to commit a drug robbery. No charges were filed 'given the circumstances,' spokespersons said. In 1993, Nickerson shot and killed himself. Investigators finally broke the case in 2025, after meeting with one of Nickerson's family members who admitted that the teenager had come to their home 'minutes after the killing' and confessed to the stabbing. District Attorney's spokespersons said because the relative was not involved in the killing or an accessory after the fact, no crime was committed and thus the witness would not be subject to arrest, even if '(we) think they should have come forward earlier.' Santa Clara District Attorney Jeff Rosen said in a statement that he was pleased by the work the office's cold case unit had done to solve the case, even if the murderer was not alive to face justice. 'This marks the end of a terrible and tragic mystery,' said Rosen. San Jose police chief Paul Joseph said he hoped the resolution would bring a measure of peace to Peterson's loved ones — and to a 'community that has carried this loss for too long.' Since being established in 2011, the DA's cold case unit has solved over 30 cold case murders from as early as 1969, officials said. Peterson's case is the fourth to be solved by the office in 2025. In a statement, Peterson's family member — who wished to stay anonymous — thanked investigators for 'not giving up for 47 years.' 'Diane was a beautiful and wonderful person who is missed dearly,' the relative said.


CBS News
4 days ago
- General
- CBS News
Cold case murder of San Jose teacher solved after 47 years; student killer had knife inscribed with "Teacher Dear"
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 student who was originally suspected in the crime as the killer, authorities announced Monday. On June 16, 1978, a student found Diane Peterson on the floor near her classroom with a single stab wound to her chest, the day after school was let out for summer and while teachers were cleaning out their classrooms. Diane Peterson Family photo The Santa Clara County District Attorney's Office said in a press release Monday that Harry "Nicky" Nickerson, a 16-year-old Branham student at the time, was the person who stabbed Peterson. Nickerson was suspected in the case, and he bore a resemblance to a police sketch of the suspect based on witness accounts. A witness also told police had told police that Nickerson had confessed to the crime and that he had seen him carrying a knife with the words "Teacher Dear" written on it, the DA's Office said. Police were unable to corroborate the claim, and prosecutors were unable to make the charges stick. Left: Composite sketch of the murder suspect made from witness accounts. Right: Image of Harry Nickerson (date unknown). Santa Clara County District Attorney's Office The DA's Office said that in 1983, the family of a Branham student told police that their son claimed to have seen the killing and identified Nickerson as the suspect. The student later denied making that statement. A year later, another witness told police that Nickerson implicated himself in Peterson's murder, which he said was a result of her discovering him dealing drugs, the DA's Office said. In 2023 and 2024, the DA's crime lab ran extensive DNA work on the case, but investigators were unable to identify the perpetrator. Earlier this year, however, the investigators learned that years ago, Nickerson had confessed to the killing to a family member. The relative admitted that Nickerson came to their home minutes after the killing and confessed to having been responsible, according to the DA's Office. In the years that followed the murder, Nickerson was convicted of a series of crimes, including armed robbery, assault with a deadly weapon, and kidnapping. The DA's Office said Nickerson was shot and critically hurt while attempting a drug robbery in 1984, but no charges were ever filed. Nickerson died from a self-inflicted gunshot wound in 1993. "This marks the end of a terrible and tragic mystery," said District Attorney Jeff Rosen in a prepared statement. "Ms. Peterson would have been a senior citizen today if she had not crossed paths with this violent teenager. I wish she was. I am pleased that we have solved this case, even though the murderer is not alive to face justice. I wish he was." "Nearly five decades have passed since a young teacher's life was tragically taken," said San Jose Police Chief Paul Joseph in a statement. "While the suspect will never stand trial or face the consequences for his actions, we hope this resolution brings a measure of peace to the victim's loved ones and to a community that has carried this loss for far too long. Let this serve as a solemn reminder: no matter how much time passes, we will continue to seek the truth - because every victim matters, and every life deserves justice." The DA's Office said its cold case unit has solved over 30 cold case murders from as early as 1969 since it was established in 2011, and the Peterson case is the fourth cold case homicide it has solved this year. A family member of the victim who asked not to be identified thanked investigators for "not giving up for 47 years." "Diane was a beautiful and wonderful person who is missed dearly," the family member said in a statement. ALSO READ: