Nashville investigators say they believe the teenager who opened fire in a high school and killed a girl before killing himself was influenced by material found on "harmful" sites.
The shooter was “significantly influenced by web-based material, especially that found on non-traditional sites that most would find harmful and objectionable,” police said.
Analysts with the ADL Center on Extremism "have located a manifesto and social media accounts believed to belong to the shooter, where he shared a range of incel, accelerationist, white supremacist, ...