Article here. Excerpt:
'On a Friday evening in November 2018, 40-year-old Scott Beierle signed up for a hot yoga class in Tallahassee, Florida, and told the receptionist he would wait outside.
When the class began, Beierle grabbed his ear protection and a loaded gun, walked into the classroom and opened fire. He killed two women, injured four others and then turned the gun on himself.
Police, through the course of their investigation of the incident, discovered a long history of hatred toward women, sexual assault allegations, and homophobic and racist comments.
Now, threat assessment experts with the US Secret Service's National Threat Assessment Center are using the Tallahassee murder-suicide to bring greater understanding to the threat posed by so-called involuntarily celibate men, often referred to as "incels."
...
Lina Alathari, the chief of the National Threat Assessment Center, estimated the number of participants in threat assessment and targeted violence trainings topped 26,000 last year.
...
"You often see a crossover between misogynistic views and White supremacy, far-right ideology, as well as in some cases far-left ideologies," Driscoll said.
"The body of research examining misogyny as an extreme ideology and incels specifically, as well as its intersection with other ideologies like White supremacy, as a field of research, is growing."'
