When Grievance Becomes Fixation: Recognizing an Escalating Warning Pattern
When researchers and investigators review the records of targeted attacks, one pattern appears with striking consistency. The person who carried out the attack had not snapped. They had been building. Months or years before an act of violence, many targeted attackers developed a deep and persistent sense of grievance, a conviction that they had been wronged in a way that demanded some kind of response. The U.S. Secret Service's National Threat Assessment Center has documented this pattern across school attacks, workplace incidents, and public-figure violence cases alike.
Grievance alone is not a warning sign. Everyone experiences situations they feel are unfair. What matters is the trajectory. When a grievance stops being something a person processes and moves past, and becomes a fixed point of focus they return to repeatedly, that shift is worth attention. Fixation is the term threat assessment professionals use for this: an obsessive, persistent preoccupation with a perceived wrong, a target, or an outcome the person believes will resolve their sense of injury.
What Fixation Looks Like in Practice
Fixation is not always loud. It may show up as a colleague who brings up a disciplinary action or a conflict with a supervisor in every conversation, months after the incident was resolved. It may appear as a student who cannot stop talking about a perceived slight from a teacher or peer, even when other things in their life have moved on. It can look like repeated attempts to relitigate a situation through formal channels, escalating from one authority to the next after each answer fails to satisfy. What makes fixation different from ordinary frustration is duration, intensity, and the degree to which it crowds out other concerns.
A Structured Way to Respond
The Homicide Threat Screener (HTS) is a five to ten minute tool designed for non-clinicians: teachers, HR professionals, security staff, supervisors, and others who notice concerning behavior but are not trained threat assessment specialists. When someone in a professional's orbit begins showing fixation-related behaviors, the HTS provides a structured way to document what they are observing and determine whether a referral for a deeper evaluation is warranted.
For cases that warrant a closer look, the Homicide Safety Risk Assessment (HSRA) is a twenty to thirty minute assessment for trained professionals. It is designed to evaluate the depth and trajectory of concerning behavior, including the kind of grievance-based thinking that drives fixation. The HSRA helps a threat assessment team understand whether the pattern is stable, escalating, or moving toward planning.
The Earlier, the Better
The prevention window for fixation-based risk is widest early. Before grievance has become planning, the intervention options are broad: a referral to an employee assistance program, a conversation with a counselor, a structured mediation, or a case management plan that monitors the situation over time. The Homicide Zero approach, built to be compatible with the NTAC behavioral threat assessment model, is designed to give professionals the tools to act during that window rather than after it has closed.
Recognizing fixation is not about judging or punishing someone for being angry. It is about noticing a pattern that the research tells us can precede harm, and giving that pattern a structured path forward before it escalates.