31/01/20132013Phoenix, Arizona, United StatesArizona00An argument over turf and respect between two rival gangs escalated to what police now describe as a "gun battle" in January at Cesar Chavez High School in Phoenix. Approximately fifteen shots were fired in the vicinity of people waiting to get into a scheduled boy's basketball game. Fortunately, no one was injured."Phoenix police make 4 arrests in Chavez High School shooting". azcentral.com. April 4, 2004. Retrieved June 17, 2004.