jokingly making a shooting motion towards the man. that night, police were initially called to the sss convenience store responding to a 911 call from a witness who saw a man with a gun. watch closely as things escalate quickly. from salamoni s perspective, you can see a brief struggle. then his gun is trained on sterling s head. don t you [ bleep ] shoot you in the [ bleep ] head, you hear me? all right, hold up, you re hurting mile arm. reporter: sterling was pinned to the ground and tazed twice. get on the ground. get on the ground. pop him again, howie. reporter: before being fatally shot. [ gunfire ] previously released cell phone videos show at this point in the encounter salamoni believed sterling was arming. a gun was recovered from sterling s body. but the federal and state investigations determined that the officer s actions were reasonable and couldn t prove that sterling wasn t reaching