Researchers, policymakers and public safety professionals now have access to a groundbreaking online resource designed to track and prevent one of the fastest-growing forms of violence in the United States and abroad. Developed by the Polarization and Extremism Research and Innovation Lab (PERIL) at American University, the Nihilistic Violent Extremism (NVE) Tracker is the first publicly accessible platform to focus on threats to young people vulnerable to manipulation. The tool specifically tracks extreme, grievance-fueled violence that often appears to lack a coherent ideology or cause.

Despite its impact on thousands of children and young people across the United States, NVE remains poorly understood and difficult to monitor. The new portal addresses this critical gap, serving as a centralized, evidence-informed hub for analyzing NVE trends, case data, and risk factors.

“NVE is a seemingly new, serious form of extremism that is not well-studied,” said PERIL research director Michael Jensen. “What are often described as ‘senseless acts of violence’ reflect patterns that we need to understand in order to prevent future attacks. That is especially important for children and young people who are most exposed to the online environments where these dynamics take shape.”

According to PERIL researchers, NVE was responsible for 31 international incidents in the first four months of 2026, resulting in 12 deaths and 49 injuries. More than half of these events—16 in total—occurred in the U.S. and involved offenses such as child sexual exploitation, weapons violations, property crimes and foiled plots. To combat this, the platform’s network map identifies dozens of extremist “nodes” across 43 countries, illustrating how these web-based networks connect to form a sprawling global threat.

By combining curated case data with sophisticated analytical tools, the NVE Tracker empowers school counselors, mental health professionals, social workers, journalists and policymakers to identify common risk factors. The platform provides critical insights into the intersection of online ecosystems, social isolation and grievance-fueled narratives. This initiative advances PERIL’s broader mission of applying public health frameworks to the study and prevention of extremist violence.

“We are releasing the tool during National Youth Violence Prevention Week,” said Bill Braniff, executive director of PERIL. “We hope that it will allow professionals to study this new form of violent extremism more effectively, respond to it more confidently and act with greater precision.”