everybody. >> reporter: the caller points out twice the gun is probably fake. >> the guy keeps pulling it in and out of his pants. it's probably fake. >> reporter: what happens next happens very quickly. the officer driving and another officer in the passenger seat. >> the officers ordered had ee show his hands and to drop the weapon and the young man pulled the weapon out and that's when the officer fired. >> reporter: in disapatchdispat audio, you can hear the officer's call for help. >> shots fired. male down. black male. maybe 20. black revolver. black handgun. send ems this way. >> reporter: even as they call for help, the officers still not understanding they shot a 12-year-old boy carrying a toy gun. >> this is not an effort to exonerate. it's not an effort to show the