Lake County teachers, counselors, and cops spent part of this spring in a crash course with the U.S. Secret Service on how to spot trouble before it walks into a classroom. The agency’s National Threat Assessment Center trained hundreds of local educators and law enforcement officers on recognizing the behavioral warning signs that often come before targeted school violence, stressing that there is no single “shooter profile” and that assumptions based on looks or background can cause schools to miss real threats. The sessions blended research, case studies, and hands-on exercises designed to get school teams talking to each other and acting early, before concerning behavior snowballs.
The National Threat Assessment Center, a unit of the U.S. Secret Service created in 1998, researches targeted violence and produces school-focused guidance. It offers training, case consultation, and written guidance to local threat-assessment teams, according to the U.S. Secret Service National Threat Assessment Center. The center publishes reports and model procedures for behavioral threat-assessment teams and runs workshops that help schools build consistent investigative and support processes that favor early, multidisciplinary responses instead of reflexive, punitive discipline.
In March, NTAC staff led sessions at the Lake County School Safety Conference at Warren Township High School’s Almond Campus in Gurnee, where hundreds of educators and public safety partners turned out, according to the Lake County Regional Office of Education. Trainers walked attendees through real case studies, including a scenario used in training that described an 11-year-old found with knives and a handgun, to show how early reporting and coordinated follow-up can stop a plot before it becomes a headline. Administrators, counselors, school resource officers, and mental health staff left saying they planned to put the tactics to work in their own districts.
Behavior Over Biography
NTAC research underscores that what potential attackers do, not who they are, is the thread that ties most plots together. Grievances aimed at staff, romantic partners, or perceived personal slights often show up in the run-up to an attack. Secret Service research and training materials emphasize that many attackers leak warning signals that can be spotted by teachers, classmates, and families, and that a structured threat-assessment process gives schools a way to respond before violence occurs, according to U.S. Secret Service research. A National Academies summary of a 2024 workshop notes that most states now require or strongly encourage school threat-assessment teams and that solid training measurably improves staff skills.
Local Officials Back The Training
Lake County State’s Attorney Eric Rinehart told participants that the information is essential for anyone who works with children, and Regional Superintendent Michael Karner said ongoing trainings and regular conversations help staff know how to respond if they see concerning behavior, as reported by ABC7 Chicago. Local leaders said their aim is prevention through early intervention and better information-sharing among schools, families, and law enforcement, rather than reacting only after a crisis.
What Comes Next
NTAC continues to offer virtual and in-person trainings and presentations to school safety leaders across the country, including keynote appearances at national conferences, according to the National Association of School Resource Officers. Research summarized by the National Academies indicates that such training sharpens staff detection skills, reduces reliance on zero-tolerance discipline, and makes it more likely that adults will report concerning behavior for follow-up. Experts add that assessment alone is not enough and has to be paired with real support for students in distress, not just a label on a file.
For Lake County schools, the message from the trainers was blunt and practical: build relationships, create repeatable threat-assessment procedures, and encourage people to speak up so warning behaviors can be addressed before they escalate. Districts, mental health teams, and law enforcement officials say they plan to keep threat assessment on their calendars as they work the conference lessons into everyday practice.
