Ontario Mom
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To be fair and accurate, the link you provided does not say "reading manifestos of prior shooters" as you've included.I was trying to find statistics on mass shooters, and what their commonalities (if any) would be.
Most individuals who perpetrated mass shootings had
a prior criminal record (64.5%) and a history of violence (62.8%), including domestic violence (27.9%). And 28.5% had a military background.
And shared the following traits:
Suicidality was found to be a strong predictor of perpetration of mass shootings. Of all mass shooters in the The Violence Project database, 30% were suicidal prior to the shooting. An additional 39% were suicidal during the shooting. Those numbers were significantly higher for younger shooters, with K-12 students who engaged in mass shootings found to be suicidal in 92% of instances and college/university students who engaged in mass shooting suicidal 100% of the time.
- Early childhood trauma and exposure to violence.
- A crisis point. Crises were in each case personal crises that turned the respondents actively suicidal.
- Validation of beliefs — finding inspiration in past shootings (reading manifestos of prior shooters)
- The means to carry out an attack (access to a killing tool)
The article does state quite clearly that some of them have studied past mass shooters, but does not indicate the exact means by which that's done. Here's what it actually says:
"The data show that many individuals who engage in mass shootings study past mass shooters — one in five (21.6%) studied other mass shooters, and many are radicalized online. The researchers recommended media literacy education as a means of helping people critically consume information and counter extremist propaganda that facilitates violence."
Those bulleted points in context:
The research team cautioned that the qualitative data, from five interviews, did not lend themselves to generalization, because each individual’s story is unique. There was no single profile of a person who engaged in a mass shooting, but the interviewed mass shooters shared the following traits:
- Early childhood trauma and exposure to violence.
- An identifiable grievance or crisis point.
- Validation of beliefs — finding inspiration in past shootings by others.
- The means to carry out an attack.
Warning Signs — Leakage
Nearly half of individuals who engaged in mass shootings (48%) leaked their plans in advance to others, including family members, friends, and colleagues, as well as strangers and law enforcement officers. Legacy tokens, such as manifestos, were left behind by 23.4% of those who committed mass shootings.It's an interesting read, thanks for sharing the link.
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