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Highlights from the 2023 Eradicate Hate Global Summit: Media | Video

Dr. Rachel Nielsen

Dr. Rachel Nielsen

D.O., Nicoletti-Flater Associates

Eradicate Hate:
2022, 2023

Dr. Rachel Nielsen has worked in mental health for 25 years with a focus on trauma, abuse and violence prevention, risk and threat assessment, forensic psychology, and behavior. Over her career, she has worked in a multitude of settings, including a state psychiatric hospital, Child Protective Services, violent and sexual offender treatment and assessment organizations, child abuse prevention programs, trauma treatment centers, and mobile crisis units. She earned a Bachelor’s degree in Academic Psychology (2000), a Master’s degree in Forensic Psychology (2003), a Master’s degree in Clinical Psychology (2017), and a Doctorate in Clinical Psychology (2018).

Dr. Nielsen served as the Executive Director of the Colorado Resilience Collaborative from 2017-2021. She has been integral in developing and formalizing the “Colorado model,” which combats targeted violence by building capacity among interdisciplinary professionals and existing teams through training and consultation. As a subject matter expert in targeted violence prevention and intervention, she has trained and presented around the world, helping others develop strategies and programming that are appropriate for their contexts.

Dr. Nielsen is a staff member with Nicoletti-Flater Associates, a prominent team of police and public safety psychologists in Colorado. The group specializes in trauma prevention and mitigation, threat assessment and management, and public safety psychology. Nicoletti-Flater Associates is renowned for preventing and responding to mass casualty events, school shootings, natural disasters, workplace violence, accidents, child fatalities, suicides, homicides, etc.

Nicoletti-Flater Associates and the Frank DeAngelis Center for Community Safety (named after the former Columbine High School principal) were awarded a significant grant from the Department of Homeland Security to train professionals in K-12 and higher education settings in targeted violence threat assessment and management.

Dr. Nielsen is part of a statewide planning and strategy group with the Colorado Department of Public Safety. She serves on the Steering Committee for the U.S. Prevention Practitioners Network with the McCain Institute at Arizona State University.


To me, Eradicate Hate was the most important gathering of 2021 for those of us who work on issues related to domestic extremism and organized hate. The Summit uniquely combined a variety of perspectives, including experts, civil society representatives, politicians and policymakers, and the families and loved ones of victims. Eradicate Hate has the important mission of standing against the rising tide of hate and extremism in our society, and it’s an honor to be able to support this mission.

Daveed Gartenstein-Ross Founder & CEO, Valens Global