Mass Attacks in Public Spaces – 2018

Mass Attacks in Public Spaces – 2018


This report is National Threat Assessment Center’s second analysis of mass attacks that were carried out in public spaces, and it builds upon Mass Attacks in Public Spaces – 2017 (MAPS- 2017). In MAPS-2017, NTAC found that attackers from that year were most frequently motivated by grievances related to their workplace or a domestic issue. All of the attackers had recently experienced at least one significant stressor, and most had experienced financial instability. Over three-quarters of the attackers had made threatening or concerning communications, and a similar number had elicited concern from others. Further, most had histories of criminal charges, mental health symptoms, and/or illicit substance use or abuse.

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Resource Details

U.S. Secret Service National Threat Assessment Center

July 2019

20 pages

Active Shooter
Armed Assailant

Table of Contents

The Incidents
The Attackers
Motives, Beliefs, and Targeting
Key Investigative Themes
Mass Attacks in Public Spaces 2017 & 2018
The Incidents (List)

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