US mass killings linked to extremism at highest level in decades, report finds

Anti-Defamation League says all extremist killings last year linked to rightwing extremism and a high number to white supremacy

The number of US mass killings linked to extremism over the past decade was at least three times higher than the total from any other 10-year period since the 1970s, according to the Anti-Defamation League.

The ADL report also found that all extremist killings identified in 2022 were linked to rightwing extremism, with an especially high number linked to white supremacy.