One common thread that connects many of them — other than access to powerful firearms — is a history of hating women, assaulting wives, girlfriends and female family members, or sharing misogynistic views online, researchers say.
…In more than half of all mass shootings in the United States from 2009 to 2017, an intimate partner or family member of the perpetrator was among the victims.
…“Most mass shooters have a history of domestic or family violence in their background. It’s an important red flag.”
…In recent years, a number of these men have identified as so-called incels, short for involuntary celibates, an online subculture of men who express rage at women for denying them sex, and who frequently fantasize about violence and celebrate mass shooters in their online discussion groups.
…[Elliot O. Rodger] killed six people in 2014 in Isla Vista, Calif., a day after posting a video titled “Elliot Rodger’s Retribution.” In it, he describes himself as being tortured by sexual deprivation and promises to punish women for rejecting him.
…Several mass killers have cited Mr. Rodger as an inspiration.
…Experts say the same patterns that lead to the radicalization of white supremacists and other terrorists can apply to misogynists who turn to mass violence: a lonely, troubled individual who finds a community of like-minded individuals online, and an outlet for their anger.
“They’re angry and they’re suicidal and they’ve had traumatic childhoods and these hard lives, and they get to a point and they find something or someone to blame.”