Now, keep in mind the year isn t even four months old yet. cnn and the car kaoeuf defined mass shootings is one that injures or kills four or more people. here are the cities in 2022 away. philadelphia, four times. sacramento, three times. pittsburgh furman, south carolina. las vegas. baltimore. columbia, twice. stockton, california, twice. brooklyn, twice. bronx. baton rouge. elin, illinois. cedar rapids, iowa, willow brook, california, indianapolis, washington, d.c., miami, philadelphia, hartford, covington, kentucky buffalo, sacramento, frank, dallas, shelby, monroe, colorado springs.