The Nevada Psychological Association 
in collaboration with the Pennsylvania Psychological Association
and a coalition of over 30 State, Provincial and Psychological Associations

The Minds, Lives, and Motivations of Mass Attackers
Presented by Peter Langman, Ph.D.
Friday, January 27th, 2023
11:00am - 2:00pm PT

3 CE Credits

This workshop will be presented as a live, virtual presentation via Zoom webinar.
Participants will be able to communicate with the presenter in real-time during the course of instruction.
As participants can interact in real-time with the presenter, this webinar meets the requirements 
as a live or face-to-face CE training by the State of Nevada Board of Psychological Examiners.


Approved for Nevada Psychologists, LCSWs and MFTs.
NPA is approved by the American Psychological Association to sponsor continuing education for psychologists. NPA maintains responsibility for this program and its content.

NPA will be offering it "on-demand" for Homestudy CE credit for 90 days following the live presentation. Online registration to the pre-recorded Homestudy CE training will be activated the week of January 30th, 2023

About the Workshop

This 3-hour webinar will start with a review of the justifications cited by perpetrators of mass attacks, as well as a consideration of underlying psychological dynamics. Next, three psychological types of mass attackers will be presented to demonstrate the intersection of their internal dynamics and life experiences. Following this, four additional cases will be reviewed to highlight the variability in functioning among perpetrators and the need to look behind superficial accomplishments to detect risk factors for violence.

Learning Objectives

At the end of this program, participants will be able to:
 Identify three psychological categories of mass attackers.
2. Explain the role of identity issues and aspirations in mass attackers.
3. Discuss the intersection of psychological dynamics and life experiences as risk factors for violence.

About the Speaker

Dr. Peter Langman is a psychologist whose research on school shooters has received international recognition. His book, Why Kids Kill: Inside the Minds of School Shooters, was named an Outstanding Academic Title and was translated into German, Dutch, Finnish, and Russian. His work has been cited in congressional testimony on Capitol Hill and he has been interviewed by the New York Times, The Today Show, 20/20, Nightline, Fox, CNN, the BBC, and nearly 500 other news outlets in the USA, Canada, South America, Europe, Asia, Australia, and the Middle East. After the Sandy Hook attack, the CEO of the American Psychological Association presented Dr. Langman’s recommendations on school safety to President Obama. He has presented at both the FBI Headquarters in Washington, DC, and the FBI National Academy in Quantico. He has been an invited speaker at the National Counterterrorism Center and was hired by Homeland Security to train professionals in school safety. He maintains the largest online collection of materials relating to school shooters at, including over 500 documents totaling 65,000 pages. His book, School Shooters: Understanding High School, College, and Adult Perpetrators was published in 2015. In 2018, Dr. Langman became a researcher with the National Threat Assessment Center of the United States Secret Service. In 2020, he became the Director of Research and School Safety Training with Drift Net Securities. His new book is Warning Signs: Identifying School Shooters Before They Strike. Dr. Langman's CV


This presentation is intended for psychologists, other licensed mental health providers, and graduate students of psychology.

Registration Fees

NPA Member $75.00 (Early Bird Discount $60.00 valid until 12/28/22)
Non-Member $105.00 (Early Bird Discount $85.00 valid until 12/28/22)
Student NPA Member $0.00 (Student NPA members can attend our live, virtual trainings for n/c with discount code)
Student Non-Member $60.00

General Information

Zoom Login Link and Handout Materials:
Zoom webinar login link and Handout materials will be sent out electronically to all attendees no later than one week prior to workshop date. Printed handout materials are not available for purchase as this CE training is being offered remotely.

Workshop Location:
Live, virtual webinar via Zoom webinar.

Closed Captions

Live audio captions will be provided for this event. If you need additional disability-related accommodations, please contact us by email us at [email protected] or by phone (888) 654-0050. Requests should be made at least two weeks in advance of workshop date.

Refunds & Grievance Policy: Participants may direct questions or grievances to NPA at (888) 654-0050. An administrative fee of $30 will be charged for cancellation of registration. Please note, no refunds will be granted after January 17th, 2023.


Approved by Nevada Board of Psychological Examiners. Nevada Psychological Association (NPA) is approved by the American Psychological Association to offer continuing education for psychologists. NPA maintains responsibility for the program and its content. NPA will issue certificates of completion. APA CE rules require that we only issue credits to those who attend the entire workshop. Attendance is strictly monitored. Those logging into the webinar more than 15 minutes late or logging off before the entire workshop is completed will not receive CE credits (i.e. partial credit will not be given). 


Langman, P. (2017). “A Bio-Psycho-Social Model of School Shooters,” Journal of Campus Behavioral Intervention, Vol. 5, pp. 27-34.

Langman, P. (2019). Psychological Insights into Homegrown Jihadists. Journal of Campus Behavioral Intervention, 7, pp. 46-55.

Langman, P. (2019). “Desperate Identities: A Bio-Psycho-Social Analysis of Perpetrators of Mass Violence,” Criminology and Public Policy, Vol. 19, pp. 61–84.

There is no potential conflict of interest and/or commercial support for this program or its presenter.