10 to Life
10 to Life
March 31, 2026

Killer in the Classroom: How a Tutoring Session Ended in Murder | Colleen Ritzer

Quick Read

A beloved Massachusetts teacher was brutally murdered by her 14-year-old student, Philip Chism, in a crime captured almost entirely on school surveillance cameras, revealing a chilling display of premeditation and lack of remorse.
Philip Chism, 14, murdered his teacher Colleen Ritzer in 2013, a crime largely recorded by 140 school surveillance cameras.
Chism's defense claimed mental illness and 'trigger words,' but evidence suggested premeditation, including bringing weapons and a change of clothes.
Despite attempts to disrupt his trial and later appeal, Chism was convicted and sentenced to life with parole eligibility in 40 years, with his appeal rejected in 2025.

Summary

In 2013, 24-year-old Danvers High School teacher Colleen Ritzer was murdered by her 14-year-old student, Philip Chism, after a tutoring session. Chism lured Ritzer into a school bathroom, attacked her, and then moved her body in a recycling bin to nearby woods, where he further brutalized her. The entire sequence of events, except for the direct acts of violence, was captured by the school's extensive CCTV system. Chism was found with Ritzer's credit card and a blood-stained box cutter, confessing to police that 'the girl' was 'in the woods.' During his trial, Chism's defense argued mental illness, claiming he heard voices, while the prosecution asserted he was manipulative and acted with premeditation. Despite Chism's attempts to disrupt proceedings, he was found guilty of first-degree murder, aggravated rape, and armed robbery, receiving a life sentence with parole eligibility in 40 years. Subsequent attacks on a youth services worker and an appeal attempt further solidified the perception of his dangerousness and lack of remorse, which was ultimately rejected by the Massachusetts Supreme Court in 2025. Colleen Ritzer's family established a memorial fund and 'Kindness for Colleen' initiative to honor her legacy.
This case highlights the devastating impact of extreme violence within a school setting and raises critical questions about juvenile justice, the assessment of mental competency in young offenders, and the potential for rehabilitation in cases of profound psychopathy. It underscores the importance of school security measures like CCTV and the enduring power of victim advocacy in shaping legal outcomes and preserving a loved one's memory through positive community action.

Takeaways

  • In 2013, 24-year-old Danvers High School math teacher Colleen Ritzer was murdered by her 14-year-old student, Philip Chism.
  • Chism attacked Ritzer in a school bathroom, then used a recycling bin to transport her body to nearby woods, where he continued the assault.
  • The majority of Chism's movements and actions within the school were recorded by 140 surveillance cameras, providing crucial evidence.
  • After the murder, Chism used Ritzer's credit cards to buy a cheeseburger at Wendy's and watch a movie.
  • Chism's defense argued he was psychotic and triggered by the word 'Tennessee,' but the prosecution contended he was manipulative and acted with premeditation.
  • Chism was found guilty of first-degree murder, aggravated rape, and armed robbery, receiving a life sentence with parole eligibility in 40 years.
  • While awaiting trial for Ritzer's murder, Chism attacked a female youth services worker with a pencil, later pleading guilty to attempted murder.
  • Chism's appeal of his murder conviction, claiming bogus rape/robbery charges and disallowed mental illness evidence, was rejected by the Massachusetts Supreme Court in 2025.
  • Colleen Ritzer's family established the Colleen Ritzer Memorial Fund and the 'Kindness for Colleen' initiative to promote compassion and honor her legacy.

Insights

1Premeditated Attack Captured on Extensive Surveillance

Philip Chism's actions, from following Colleen Ritzer into a bathroom with gloves and a box cutter to later transporting her body in a recycling bin, were almost entirely recorded by Danvers High School's 140 surveillance cameras. This footage provided undeniable evidence of his calculated movements and attempts to conceal his identity and the crime.

CCTV footage showed Chism putting on gloves, pulling up his hood, entering the bathroom where Ritzer was, and later wheeling a green recycling bin (containing Ritzer's body) out of the school and into the woods. He returned with the lighter bin, barefoot, and with blood on his jeans, before changing clothes.

2Defense of Psychosis vs. Prosecution of Manipulation

Chism's defense argued he was psychotic, hearing voices since age 10, and was 'triggered' by the word 'Tennessee' during a conversation with Ritzer. They claimed he was not a 'kind, smart 14-year-old' during the attack but was responding to hallucinations. The prosecution, however, presented evidence from doctors who declared Chism manipulative, arguing his behavior was inconsistent with hearing voices and that his actions were a deliberate attempt to evade accountability.

The defense's expert witness, Dr. Richard Dudley, testified Chism heard voices. The prosecution cited a 96-page report stating doctors found Chism manipulative and his behavior inconsistent with psychosis. Chism's in-court antics, such as head-banging and refusing to appear, were framed by the prosecution as manipulative stall tactics.

3Juvenile Sentencing Laws and Victim Advocacy

Colleen Ritzer's family faced the challenge of Massachusetts' new laws preventing life sentences without parole for juveniles convicted of first-degree murder. This meant they would have to repeatedly fight for Chism to remain imprisoned. They advocated for the harshest possible consecutive sentences and emphasized the need for community safety and the impossibility of rehabilitation for someone showing no remorse.

Colleen's mother, Peggy, expressed devastation over the Supreme Judicial Court's ruling, stating it would force their family to 'publicly go through this pain again' to keep Chism in prison. The judge ultimately imposed the harshest possible sentence under the new law: life in prison with parole eligibility in 40 years, acknowledging the constitutional requirement to consider redemption.

4Continued Violence and Lack of Remorse

Even after Ritzer's murder, Chism demonstrated a pattern of violence and a complete absence of remorse. While awaiting trial, he attacked a youth services worker, later pleading guilty to attempted murder. He also filed an appeal for Ritzer's murder conviction, despite earlier claiming to take responsibility for the youth worker attack, further illustrating his manipulative tendencies and lack of accountability.

Chism attacked a female youth worker with a pencil, choking and beating her, leading to charges of attempted murder, assault with a dangerous weapon, and kidnapping. The victim described him as a 'monster and a murderer.' Chism's subsequent appeal of his murder conviction for Ritzer's death directly contradicted his lawyer's earlier statement that he wanted to take responsibility.

Lessons

  • Implement and regularly review comprehensive surveillance systems in schools to deter crime and provide critical evidence in the event of an incident.
  • Advocate for legal frameworks that balance juvenile rehabilitation considerations with public safety and the severity of crimes, particularly in cases involving extreme violence and lack of remorse.
  • Support victim advocacy groups and memorial funds that transform personal tragedy into positive community impact, such as promoting kindness and supporting future educators.

Quotes

"

"He had a goal, a terrible, terrible purpose, and he played it out in the woods, and he didn't care what came after that."

Kate McDougall (Prosecutor)
"

"He deserves the sentence of death for the brutal crimes he committed, but that is not an option. He deserves life in prison without the eligibility of parole, but that is not an option."

Peggy Ritzer (Colleen's Mother)
"

"True monsters exist in the world. Philip Chisum is a monster and a murderer."

Female Youth Services Worker (Victim)
"

"Colleen and our family will not be afforded a second chance. If we live in a just society, neither should he."

Colleen Ritzer's Family Statement
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"This was calculated. This was deliberate. And in my opinion, Philip's mind was already set in stone the day that he killed Colleen. And the fact that he's never even said sorry in a decade since that all happened. I mean, that just proves that."

Annie Elise (Host)

Q&A

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