Using Unity animation event on multi-player trigger multi count ?

i use the animation event ,i get a script for the animation Component ,

void Start () {

     AnimationClip gunMove = animation.GetClip("attack");
     AnimationEvent aevent = new AnimationEvent();
     aevent.functionName = "attackInfo"; //
     aevent.time = 1.05f;
     gunMove.AddEvent(aevent);

}

void attackInfo() { Debug.Log("setInfo"); }

then i instantiate 3 role to attack a cube ,the question is comming , jues one role attack the cube ,but the debug.log had print 3 info ,

setInfo UnityEngine.Debug:Log(Object)

setInfo UnityEngine.Debug:Log(Object)

setInfo UnityEngine.Debug:Log(Object)

why , and ,how i can solve this question ,thanks !!