By Robert Jordan
K-12 Student Threat Detection Before a Mass Shooting. SITE|SAFETYNET℠ identifies school shootings as a serious concern for educators, administrators, parents, and communities. Although relatively rare, these events can have devastating consequences. In recent years, there has been an increasing emphasis on identifying and assessing students who may pose a threat of violence to prevent these tragedies from occurring. Critically, research has shown that school shootings are preventable if warning signs are recognized and reported1. This report examines the behavioral indicators that students may exhibit before a mass shooting, the typical characteristics of students who have committed mass shootings, and how schools can identify, assess, and manage students who may pose a threat.
Behavioral Indicators of Potential School Shooters
Students who are planning a school shooting often exhibit observable behaviors that indicate they may be on a pathway to violence. While not always indicative of an impending attack, these behaviors should be taken seriously and investigated further. The FBI’s research has identified several concerning behaviors that, when combined with other-regarding behaviors, may indicate a person is moving towards violence2. Some common concerning behaviors include:
- Sudden changes in behavior or personality: This can include withdrawing from friends and family, a decline in academic performance, increased irritability or anger, and a loss of interest in previously enjoyed activities. For example, a student who was once outgoing and engaged in class may suddenly become withdrawn and isolated, or a student who consistently earned good grades may start failing classes1.
- Social isolation: Socially isolated Students may feel like they don’t belong and may be more likely to engage in violence. This isolation can be self-imposed, or it can be the result of bullying or social rejection by peers. A student who spends most of their time alone avoids social interactions and has few or no friends may be at higher risk4.
- Bullying or victimization: Students who are bullied or who have been victims of violence may be more likely to become violent themselves. Bullying can take many forms, including physical, verbal, and emotional abuse. Students repeatedly targeted by bullies may develop anger, resentment, and a desire for revenge1.
- Excessive irritability, lack of patience, or quickly becoming angry can be signs of a student struggling to cope with stress or other problems. A student who frequently lashes out at others has difficulty controlling their temper or overreacts to minor situations and may be experiencing emotional distress2.
- Expressing persistent thoughts of harming themselves or someone else: This can include making direct threats, writing about violence, or expressing a desire to hurt others. For example, a student may write a story or poem about violence, draw disturbing images, or make comments about wanting to harm specific individuals or groups of people2.
- Making direct threats toward a place, another person, or themselves: This should always be taken seriously and reported to authorities immediately. Direct threats can be verbal, written, or communicated through social media. Any danger that intends to harm oneself or others should be thoroughly investigated3.
- Bragging about access to guns or weapons: This can be a sign that a student is considering using a gun to harm others. Students may brag about having access to firearms at home, show off weapons to their peers, or talk about using weapons to harm others3.
- Obsession with online violent content, mass shooters, or weapons: This can indicate an unhealthy fascination with violence and may desensitize a student to the consequences of their actions. Students may spend excessive amounts of time-consuming violent media, researching past school shootings, or engaging in online communities that glorify violence2.
- Cruelty to animals: This can be a sign of a lack of empathy and a disregard for the suffering of others. Students who engage in cruelty to animals may harm animals for entertainment, express a lack of remorse for their actions, or show an indifference to animal suffering3.
It is important to note that these behaviors do not always indicate an impending attack. However, when several warning signs accumulate over time, it can mean that someone is on a pathway toward violence7. The FBI has researched “mobilization indicators,” which are behaviors that suggest an individual is actively planning and preparing to commit an act of violence. These indicators can include acquiring weapons, conducting surveillance of a target, and communicating their plans to others2.
Characteristics of Students Who Have Committed Mass Shootings
While there is no single profile of a school shooter, research has identified some common characteristics among students who have committed mass shootings. It is important to note that different types of mass shootings (e.g., school shootings, workplace shootings, attacks on houses of worship) have distinct profiles8. This report focuses specifically on K-12 school shootings. Some common characteristics of school shooters include:
- Gender: The vast majority of school shooters are male8.
- Race: Most school shooters are white8.
- Social isolation: Many school shooters are socially isolated and have difficulty forming relationships with others. They may be withdrawn, have few friends, and feel they don’t belong9.
- History of trauma: Many school shooters have experienced trauma, such as abuse, neglect, or bullying. These experiences can have a profound impact on a student’s mental health and well-being and may increase their risk of engaging in violence8.
- Mental health concerns: Some school shooters have a history of mental health concerns, such as depression, anxiety, or psychosis. However, it is essential to note that the vast majority of people with mental health concerns do not engage in violence. Mental health concerns should be considered one of many factors in threat assessment, but they should not be used to stereotype or profile students10.
- Fascination with violence: Many school shooters have an unhealthy interest in violence, including previous school shootings, weapons, and violent media. They may idolize past school shooters, collect weapons, or spend excessive amounts of time-consuming violent content11.
- Access to firearms: Most school shooters have access to weapons, often from their own homes. This highlights the importance of secure firearm storage in preventing school shootings9.
- Motives: School shooters often have multiple motives for their attacks. Common motives include grievances with classmates, school staff, or romantic partners. Other motives can consist of a desire to kill, suicide, and seeking fame or notoriety14.
It is important to reiterate that there is no accurate profile of a school shooter19. These characteristics should not be used to stereotype or profile students. However, they can help identify students who may be at risk and need support.
Identifying and Assessing Students Who May Pose a Threat
Schools can take a proactive approach to identifying and assessing students who may pose a threat of violence. This includes:
- Establishing a multidisciplinary threat assessment team: This team should include representatives from school administration, mental health (such as counselors, psychologists, and social workers), and law enforcement. The team should also include school staff with strong connections with the student in question, such as teachers, coaches, or club advisors20.
- Defining prohibited and concerning behaviors: Schools should have straightforward policies that define prohibited behaviors (e.g., bringing weapons to school, making direct threats) and those that are concerning but may not indicate violence (e.g., social withdrawal, sudden changes in behavior)20.
- Creating a central reporting mechanism: Schools should establish a system for students, staff, and community members to report concerning behaviors. This could include a tip line, an online form, or a designated email address20.
- Determining the threshold for law enforcement intervention: Most threats can be handled by school personnel, but schools should have clear procedures for involving law enforcement when necessary20.
- Establishing threat assessment procedures: Teams should have clear procedures for conducting threat assessments, including gathering information, assessing risk, and developing intervention strategies. These procedures should follow legal and ethical guidelines and protect student privacy rights20.
- Training staff: All school personnel should be trained to recognize warning signs and how to report concerns. Training should also cover the school’s threat assessment procedures and maintaining confidentiality27.
- Creating a positive school climate: A positive school climate can help reduce the risk of violence by fostering a sense of belonging and connectedness among students. This can be achieved through initiatives that promote inclusivity, respect, and positive relationships7.
- Monitoring online activity: Schools should monitor student online activity for potential threats while also being mindful of student privacy rights and legal considerations. This can include monitoring social media posts, online forums, and other platforms concerning behavior or communications29.
- Understanding the pathway to violence: School personnel should be trained to recognize the four stages in the path to violence: ideation, planning, preparation, and implementation30. This understanding can help schools intervene earlier and prevent violence from occurring.
- Assessing the seriousness of threats: Schools should distinguish between students who make threats and those who pose a threat26. This requires a thorough threat assessment process that considers the context of the danger, the student’s intent, and their access to weapons.
- Understanding different types of threats: Schools should be aware of the different kinds of threats (direct, indirect, veiled, conditional) and how to assess their seriousness25.
Threat Type | Description | Example | Response |
Direct | Specific act against a specific target | “I’m going to shoot up the school tomorrow.” | Immediate intervention: contact law enforcement |
Indirect | Vague, unclear, and ambiguous | “Someone should do something about this school.” | Gather more information, assess risk |
Veiled | Strongly implies but does not explicitly threaten violence | “This school will pay for what they did to me.” | Investigate further, assess risk |
Conditional | Threat contingent on specific demands | “If I don’t get an A in this class, I will blow up the school.” | Take the threat seriously, assess risk, and address the student’s demands |
The Role of Mental Health Professionals
Mental health professionals play a critical role in identifying and assessing student threats. They can provide expertise in:
- Assessing students’ mental health needs: Mental health professionals can conduct assessments to determine whether a student is experiencing mental health concerns that may increase their risk of violence. This can include assessing for depression, anxiety, trauma, and other mental health conditions31.
- Providing counseling and support: Mental health professionals can provide counseling and support to students who are struggling with mental health concerns or who have experienced trauma. This can include individual therapy, group therapy, and crisis intervention31.
- Developing intervention strategies: Mental health professionals can work with the threat assessment team to develop intervention strategies that address the underlying causes of a student’s concerning behavior. This can include developing individualized plans that address the student’s mental health needs, social skills deficits, and academic challenges22.
- Educating staff and students: Mental health professionals can train staff and students on mental health awareness, warning signs, and reporting concerns. This can help create a more supportive and informed school environment32.
- Connecting students to community resources: Mental health professionals can help connect students and families to community resources, such as mental health clinics, support groups, and social services. School-based health centers can play a crucial role in this process by providing integrated mental health services and facilitating referrals to community providers33.
Legal and Ethical Considerations
Schools must be mindful of legal and ethical considerations when conducting threat assessments. These include:
Student Privacy
Schools must protect students’ privacy rights when collecting and sharing information. This includes complying with the Family Educational Rights and Privacy Act (FERPA), which protects the confidentiality of student education records. Schools should have clear policies and procedures for collecting, storing, and sharing student information, and they should ensure that all staff members are trained on these policies34.
Due Process
Students have the right to due process when facing disciplinary action. This means that schools must notify students of the charges against them, an opportunity to be heard, and a fair and impartial decision-making process. Schools should ensure that their threat assessment procedures are consistent with due process requirements and that students are not punished without a fair hearing38.
Discrimination
Schools must ensure that threat assessments are not used to discriminate against students based on race, ethnicity, gender, or disability. Threat assessment procedures should be applied fairly and equitably to all students, and schools should monitor for any potential disparities in implementing these procedures. Notably, research has shown that threat assessment can reduce racial disparities in school discipline23.
Confidentiality
Mental health professionals must maintain confidentiality when working with students. This means that they cannot disclose information about a student’s mental health or treatment without the student’s consent, except in limited circumstances where there is a risk of harm to the student or others. Schools should have clear policies and procedures for maintaining confidentiality and ensure that all mental health professionals are trained on these policies41.
Policy and Legislation
In addition to school-based interventions, policy, and legislation can play a crucial role in preventing school shootings. This includes:
- Child Access Prevention (CAP) laws: These laws promote responsible firearm storage practices and hold gun owners accountable for failing to take measures to prevent children from accessing firearms. Research has shown that CAP laws can reduce firearm deaths and injuries among children and teens42.
- Minimum age laws: These laws make it illegal for young people under a certain age to purchase or possess firearms. Raising the minimum age to buy firearms can help prevent youth access to weapons and reduce the risk of school shootings43.
Impact of School Shootings
School shootings can have a devastating impact on the mental health of students and staff. Research has shown that students who experience a school shooting may experience a range of mental health consequences, including anxiety, depression, post-traumatic stress disorder (PTSD), and increased use of psychotropic medications15. Schools should provide mental health support to students and staff following a shooting and should create a supportive and trauma-informed environment to facilitate healing and recovery.
Balancing Safety with Student Rights
Schools must balance the need for safety with the rights of students. This includes:
- Avoiding overreaction: Schools should not overreact to every concerning behavior. Many students make threats that are not serious, and overreaction can lead to unnecessary disciplinary action and stigmatization23.
- Providing support: Schools should provide support to students who are struggling with mental health concerns or who have experienced trauma. This can include providing access to mental health services, creating a supportive school environment, and connecting students to community resources44.
- Creating a culture of trust: Schools should develop a culture where students feel comfortable reporting concerns without fear of punishment. This can be achieved through open communication, clear policies and procedures, and a commitment to fairness and equity45.
Conclusion
Schools can take a proactive approach to identifying and assessing students who may pose a threat of violence. By establishing threat assessment teams, training staff, creating a positive school climate, and implementing appropriate policies and procedures, schools can help prevent tragedies while also protecting students’ rights. Mental health professionals play a critical role in this process by providing expertise in assessment, intervention, and education. Schools must be mindful of legal and ethical considerations when conducting threat assessments and should strive to balance the need for safety with the rights of students.
School administrators and educators are encouraged to implement the recommendations outlined in this report to create safer and more supportive learning environments for all students. By working together, we can prevent school shootings and ensure that all students have the opportunity to thrive.
Works Cited
- Study Confirms School Shootings are Preventable If You Know The Signs, accessed January 26, 2025, https://www.sandyhookpromise.org/blog/news/study-confirms-school-shootings-are-preventable-if-you-know-the-signs/
- Prevent Mass Violence – FBI, accessed January 26, 2025, https://www.fbi.gov/how-we-investigate/prevent-mass-violence
- Prevent Gun Violence by Knowing the Signs – Sandy Hook Promise, accessed January 26, 2025, https://www.sandyhookpromise.org/blog/student-resources/know-the-signs-of-gun-violence/
- Addressing social isolation may be key in preventing mass shootings, study finds, accessed January 26, 2025, https://news.vcu.edu/article/2023/02/addressing-social-isolation-may-be-key-in-preventing-mass-shootings-study-finds
- Targeting School Shootings: Using Three Warning Signs—Animal Abuse, Domestic Violence, and Conduct Disorder—To Help Prevent – NSUWorks, accessed January 26, 2025, https://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1643&context=law_facarticles
- Bullying is linked to school shootings. What do schools need to know? | K-12 Dive, accessed January 26, 2025, https://www.k12dive.com/news/bullying-school-shootings-prevention/704206/
- Preventing And Preparing For An Active Shooter Incident: A Fact Sheet For School Employees, accessed January 26, 2025, https://www.dir.ca.gov/chswc/sash/Publications/Active_Shooter_Fact_Sheet.pdf
- Data reveal five profiles. School shooters aren’t like mall attackers or those who attack synagogues., accessed January 26, 2025, https://enewspaper.latimes.com/infinity/article_share.aspx?guid=89fff325-2767-488f-b7b6-ba10098bb717
- What characteristics are common among school shooters? | Children’s Emotional Health, accessed January 26, 2025, https://www.sharecare.com/health/childrens-emotional-health/what-characteristics-school-shooters
- Characteristics Shared by the Young Men Committing Mass Shootings | Psychology Today, accessed January 26, 2025, https://www.psychologytoday.com/us/blog/trauma-resilience-and-recovery/202207/characteristics-shared-by-the-young-men-committing-mass
- School Shootings, 10 Risk Factors You Need to Know | Red Dot Alert, accessed January 26, 2025, https://reddotalert.com/school-shootings-10-risk-factors-you-need-to-know/
- A model for differentiating school shooters characteristics – University of Huddersfield Repository, accessed January 26, 2025, https://eprints.hud.ac.uk/25889/1/Differentiating%20school%20shooters%20paper.pdf
- Rampage School Shooters: A Typology, accessed January 26, 2025, https://schoolshooters.info/sites/default/files/rampage_school_shooters_typology_1.1.pdf
- PROTECTING AMERICA’S SCHOOLS A U.S. SECRET SERVICE ANALYSIS OF TARGETED SCHOOL VIOLENCE, accessed January 26, 2025, https://www.secretservice.gov/sites/default/files/2020-04/Protecting_Americas_Schools.pdf
- The Mental Health Effects of School Shootings – Institute for Policy Research, accessed January 26, 2025, https://www.ipr.northwestern.edu/news/2024/the-mental-health-effects-of-school-shootings.html
- Let It End With Us – PMC, accessed January 26, 2025, https://pmc.ncbi.nlm.nih.gov/articles/PMC9495480/
- Is There a Link Between Mental Health and Mass Shootings?, accessed January 26, 2025, https://www.columbiapsychiatry.org/news/mass-shootings-and-mental-illness
- 3 Common Traits of School Shooters | The Heritage Foundation, accessed January 26, 2025, https://www.heritage.org/education/commentary/3-common-traits-school-shooters
- School shootings: What we know about them, and what we can do to prevent them, accessed January 26, 2025, https://www.brookings.edu/articles/school-shootings-what-we-know-about-them-and-what-we-can-do-to-prevent-them/
- Section 1: How to Select and Train Your School Threat Assessment Team, accessed January 26, 2025, https://www.nc2s.org/resource/school-threat-assessment-toolkit/section-1/
- OVERVIEW OF STUDENT THREAT ASSESSMENT SYSTEM – OSPI, accessed January 26, 2025, https://ospi.k12.wa.us/sites/default/files/2023-08/esd-112s-school-safety-advisory-presentation.pdf
- Understanding Behavioral Threat Assessment and Early Intervention – Raptor Technologies, accessed January 26, 2025, https://raptortech.com/resources/blog/understanding-behavioral-threat-assessment-and-early-intervention/
- Behavioral Threat Assessment and Intervention in Schools | AASA, accessed January 26, 2025, https://www.aasa.org/resources/resource/behavioral-threat-assessment-intervention-schools
- Part 1: Prevention | NEA – National Education Association, accessed January 26, 2025, https://www.nea.org/resource-library/gun-violence-prevention-response-guide/gun-violence-prevention
- Threat Assessment at School: A Primer for Educators – nyssswa, accessed January 26, 2025, https://nyssswa.org/wp-content/uploads/2018/02/Threat_Assessment_S9-20.pdf
- School Behavioral Threat Assessment Toolkit | Texas School Safety Center, accessed January 26, 2025, https://txssc.txstate.edu/tools/sbta-toolkit/defining-tam
- What is a Threat Assessment in Schools? – Navigate360, accessed January 26, 2025, https://navigate360.com/blog/what-is-threat-assessment-in-schools/
- Can We Prevent School Shootings? | Alfred University, accessed January 26, 2025, https://www.alfred.edu/about/news/studies/lethal-school-violence/can-we-prevent.cfm
- Sandy Hook Promise Statement on the Warning Signs that Preceded Nashville School Shooting, accessed January 26, 2025, https://www.sandyhookpromise.org/press-releases/statement-on-the-warning-signs-that-preceded-nashville-school-shooting/
- School Shooters: What We Know and Why Prevention Is Possible | United Educators, accessed January 26, 2025, https://www.ue.org/risk-management/premises-safety/school-shooters-what-we-know-and-why-prevention-is-possible/
- Mental Health and Threat Assessment – nSide, accessed January 26, 2025, https://nside.io/2023/05/02/mental-health-and-threat-assessment/
- School Counselors’ Role in Threat Assessments, accessed January 26, 2025, https://www.schoolcounselor.org/Magazines/March-April-2022/School-Counselors-Role-in-Threat-Assessments
- School-Based Health Centers Are Well-Positioned To Help Address Gun Violence, accessed January 26, 2025, https://www.healthaffairs.org/do/10.1377/forefront.20241018.933079/
- Section 2 – FAQs about Threat Assessment and FERPA, accessed January 26, 2025, https://www.nc2s.org/wp-content/uploads/2024/01/Section-2-FAQs-About-Threat-Assessment-and-FERPA.pdf
- Threat Assessment and Reporting | SchoolSafety.gov, accessed January 26, 2025, https://www.schoolsafety.gov/threat-assessment-and-reporting
- Threat Assessment in Schools: A Guide to Managing Threatening Situations and to Creating Safe School Climates – Department of Education, accessed January 26, 2025, https://www.ed.gov/sites/ed/files/admins/lead/safety/threatassessmentguide.pdf
- Information Sharing During Threat Reporting & Assessment – National Center for School Safety, accessed January 26, 2025, https://www.nc2s.org/wp-content/uploads/2022/07/A-Quick-Guide-to-Information-Sharing-During-Threat-Reporting-Assessment.pdf
- Student Threat Considerations – Thrun Law Firm, accessed January 26, 2025, https://www.thrunlaw.com/news/student-threat-considerations
- School Hardening: Why Threat Assessments Are Not the Answer to School Safety – Citizens for Juvenile Justice, accessed January 26, 2025, https://cfjj.squarespace.com/s/FACT-SHEET-Threat-Assessments-and-School-Hardening.pdf
- School Threat Assessment and Discipline, accessed January 26, 2025, https://education.virginia.edu/documents/yvpschool-threat-assessment-and-disciplinepdf
- Ethical Considerations for Threat Assessments – American School Counselor Association, accessed January 26, 2025, https://www.schoolcounselor.org/Magazines/September-October-2011/Ethical-Considerations-for-Threat-Assessments
- Back to School: Leaders Must Act to Stop School Shootings | GIFFORDS, accessed January 26, 2025, https://giffords.org/report/back-to-school-leaders-must-act-to-stop-school-shootings/
- The role of child gun safety laws in curbing school shootings – Harvard Public Health Magazine, accessed January 26, 2025, https://harvardpublichealth.org/policy-practice/the-role-of-child-gun-safety-laws-in-curbing-school-shootings/
- Privacy and Confidentiality: Balancing Student Rights and Campus Safety – National Association of College and University Attorneys, accessed January 26, 2025, https://www.nacua.org/docs/default-source/jcul-articles/34_jcul_393.pdf?sfvrsn=9d8789bf_14
- Balancing School Safety and Student Privacy: A Guide for Educational Leaders – Pikmykid, accessed January 26, 2025, https://www.pikmykid.com/blog/balancing-school-safety-and-student-privacy/