other enemy takes damage first when i hit other one

other enemy takes damage first when i hit other one until it die and just then the one thet i direct hit starting to take damage i use OnTriggerEnter on my shot script. does some one know why is that happens?

this is my shot script:

public class Shotscript : MonoBehaviour {

 public Transform enemy;

 public int minDist = 50;
 public int maxDist = 35;
 public bool isHere = false ;
 public Enemypatrol enemyHit;
 public float power = 100;
 public float moveSpeed = 20;


 // Use this for initialization
 void Start () 
 {
     Invoke ("NoHitDestroy", 4);

     enemyHit = GameObject.FindWithTag("Enemy").GetComponent<Enemypatrol> ();
     enemy = GameObject.FindWithTag ("Enemy").transform;
 }
 
 // Update is called once per frame
 void Update () 
 {


     if (isHere ) 
     {
         //GetComponent<NavMeshAgent> ().destination = enemy.position ;
     }
     if (isHere == false) 
     {
         transform.Translate (Vector3.forward * moveSpeed * Time.deltaTime);

     }

 }
 collosion

 void OnTriggerEnter (Collider other)
 {
     if (other.gameObject.CompareTag ("ShotDict")) 
     {
         isHere = true;
     }

     if (other.gameObject.CompareTag ("Enemy")) 
     {
         enemyHit.totalLife = enemyHit.totalLife - power;
         Destroy(gameObject);
     }
 }

 void NoHitDestroy ()
 {
     Destroy (gameObject);
 }

}

and this is my enemy script:

public class Enemypatrol : MonoBehaviour {

 public Transform followPlayer; 
 private bool isHere  ;
 public int minDist = 50;
 public int maxDist = 35;

 public float totalLife = 1000;
 public float life = 1000;
 public Text lifeText;
 public bool showText ;

 public PlayerArttibutes playerExp;

 // Use this for initialization
 void Start () 
 {

     followPlayer = GameObject.FindWithTag ("Player").transform;
     playerExp = GameObject.FindWithTag ("Player").GetComponent<PlayerArttibutes> ();
 
 }

 // Update is called once per frame
 void Update () 
 {
     showText = false;
     isHere = false;
     transform.LookAt(followPlayer);
     if (Vector3.Distance(followPlayer.position, transform.position) < minDist) 
     {
         showText = true;
         isHere = true;

     }
     if (showText) 
     {
         lifeText.text = "life: " + totalLife.ToString();
     }

     if (isHere) 
     {
         GetComponent<NavMeshAgent> ().destination = followPlayer.position ;
     }

     if (totalLife <= 0) 
     {
     
         showText = false;
         isHere = false;
         Destroy(gameObject);
         playerExp.heroExp += 150;


     }
     if (showText == false) 
     {
         lifeText.text = " " ;
     }


 }

}