All but one of the 50 incidents had a single attacker
All but one of the 50 incidents examined were perpetrated by a single attacker.
All but one of the 50 incidents examined were perpetrated by a single attacker.
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Claims on this page
The one multi-attacker incident was a pair firing at a bar
The one incident with more than one attacker involved a pair who opened fire at a bar after one attacker had been thrown out hours earlier.
The one incident perpetrated by more than one attacker involved a pair of assailants that opened fire at a bar
Nearly all attackers were male (96%, n = 49)
Nearly all attackers were male (n = 49, 96%).
Sample (n = 49 of 51) · attackers, all affiliation types
Nearly all attackers were male (n = 49, 96%)
Attacker ages ranged from 22 to 66
Attacker ages ranged from 22 to 66 years old.
ages ranged from 22 to 66 years old
Average workplace attacker age was 41
The average age of workplace attackers was 41 years.
The average age of workplace attackers was 41 years.
Key findings box summarizes attacker stressors, concern, charges, and DV
The attacker key findings box lists stressors, elicited concern, prior criminal charges, and domestic violence history as key findings.
KEY FINDINGS FOR ATTACKERS
Why inferred Key findings box is a summary judgement; its statistics are restated from the body text.
92% of attackers had stressors within five years of the attack (n = 47)
Nearly all attackers (n = 47, 92%) experienced noteworthy life stressors within five years of their attack.
Sample (n = 47 of 51) · attackers, all affiliation types
Nearly all attackers (n = 47, 92%) experienced noteworthy life stressors within five years of their attack.
Financial difficulties affected 55% of attackers (n = 28)
Stressors frequently included financial difficulties (n = 28, 55%).
Sample (n = 28 of 51) · attackers, all affiliation types
financial difficulties (n = 28, 55%)
Personal-life problems affected 47% of attackers (n = 24)
Stressors also included problems in the attacker's personal life (n = 24, 47%).
Sample (n = 24 of 51) · attackers, all affiliation types
problems in their personal lives (n = 24, 47%)
Employment issues affected 45% of attackers (n = 23)
Stressors also included employment-related issues (n = 23, 45%), such as conflicts with coworkers or disciplinary actions or termination at work.
Sample (n = 23 of 51) · attackers, all affiliation types
employment-related issues (n = 23, 45%)
Many attackers experienced multiple stressors at once
In many cases, attackers experienced multiple stressors at once.
In many cases, attackers experienced multiple stressors at once.
Service member's on-base shooting after cumulative stressors
A 22-year-old U.S. military service member facing health, family, peer, and performance stressors, and seeking mental health care for sleep, coping, and belonging problems, fatally shot two civilian workers and injured a third on base before dying by suicide.
A 22-year-old service member in the U.S. military, armed with his service rifle and handgun, fatally shot two civilian workers and injured a third on base
A military service member faced personal and professional stressors in the year before his attack
As an example of multiple stressors, a U.S. military service member experienced a number of personal and professional stressors in the year leading up to his attack.
For instance, a U.S. military service member experienced a number of personal and professional stressors in the year leading up to his attack.
Service member's stressors: chronic pain, ill loved one, peer harassment, work reprimands
In the year before the attack, the service member experienced chronic pain from a motorcycle accident, a loved one's ailing health, harassment from peers, and numerous work reprimands and citations for poor performance and tardiness.
Within the year prior to the attack, the attacker experienced multiple stressors, including chronic pain resulting from a motorcycle accident, the ailing health of a loved one, harassment from peers, and numerous reprimands and citations at work due to poor performance and tardiness.
Service member repeatedly sought care for sleep, stress, and alienation problems
At multiple points the service member sought medical attention for mental health problems, including difficulty sleeping and concentrating, coping with stress, and feelings of alienation and not belonging among peers.
At multiple points in time, the attacker sought medical attention for mental health problems, including visits for difficulty sleeping and concentrating, issues coping with stress, and feelings of alienation and lacking a sense of belonging among his peers.
Key finding: 78% of attackers had a history of behaviors that elicited concern
The Key Findings for Attackers box states that 78% of attackers had a history of behaviors that elicited concern from others.
Sample (n = 40 of 51) · attackers, all affiliation types
78% of attackers had a history of behaviors that elicited concern from others.
Key finding: 65% of attackers had prior criminal charges
The Key Findings for Attackers box states that 65% of attackers had prior criminal charges.
Sample (n = 33 of 51) · attackers, all affiliation types
65% of attackers had prior criminal charges.
Key finding: 53% of attackers had at least one instance of domestic violence
The Key Findings for Attackers box states that 53% of attackers had at least one instance of domestic violence in their past.
Sample (n = 27 of 51) · attackers, all affiliation types
53% of attackers had at least one instance of domestic violence in their past.
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