The United States experienced 61 “active shooter” incidents last year, the highest tally in over 20 years, according to new FBI data.
The number of “active shooter” incidents marked a sharp rise in the sheer number of attacks, casualties and geographic distribution from 2020, according to the FBI. The 2021 total, spread over 30 states, was 52% higher than 2020 and about double each of the three previous years, the agency said.