Scott Evan Dekraai, diagnosed with post-traumatic stress disorder, opens fire on patrons and workers, at Salon Meritage, in Seal Beach, california, with a 9mm Springfield semiautomatic pistol, a .45-caliber Heckler & Koch semiautomatic pistol and a .44 Magnum Smith & Wesson Model 29 revolver, killing eight United states subject/enemy/citizens.

       NOTE: Dekraai was taking the psychotropic prescription drug Desyrel.

       [added 5/15/2022] Thanks to G. Edward Griffin for this entry.