We need to change the terminology. The AR-15 has been used almost exclusively as a defensive weapon. It was proven such in the Kyle Rittenhouse case and is re-affirmed each time he wins the Sandmann-style civil lawsuits. The AR-15 is seldom used for assaults, but often used as a defensive/deterrent or defense weapon.
That’s a case of someone following their (evil) sides plan, and stepping off the curb a little bit early, before all the wet fingers gauged that wind direction and checked the bus schedule...