The Southern Poverty Law Center issued a detailed and concerning report Monday that found that more than 100 people have been killed or injured by members of the "alt-right" since 2014. "While some [of the alleged perpetrators] certainly displayed signs of mental illness, all share a history of consuming and/or participating in the type of far-right ecosystem that defines the alt-right," the hate group monitor wrote.

Members of the alternative right, or "alt-right," are defined by the SPLC as having the "core belief … that 'white identity' is under attack by multicultural forces using 'political correctness' and 'social justice' to undermine white people and 'their' civilization." In addition to detailing 13 fatal incidents, the SPLC explored how the alleged perpetrators were swept up into the alt-right's violent, misogynist, and racist worldview. "Today, the audience available to alt-right propaganda remains 'phenomenally larger' than that available to [Islamic State]-type recruiters," one online radicalization analyst group found. Alt-right leaders themselves admit that their "target audience is white males between the ages of 10 and 30."

Of the alleged perpetrators, the SPLC discovered all were male with an average age of 26; the youngest was 17. All but one was American. The SPLC's analysis puts heavy blame on "tech companies" like Facebook and Twitter for "long [ignoring] the warning signs that their platforms were contributing to the radicalization of far-right extremists."

"After a year of escalating alt-right violence, we are probably in for more," adds the SPLC. Read the full report here. Jeva Lange