Enemyhealth component problem

Hey guys I’m writing a script that creates an array of all enemies then draws a ray from the player character, when the ray hits one it becomes the targeted enemy. But once I kill that enemy all the others get killed as well. Here’s my scripts:

using UnityEngine;
using System.Collections;

public class Attack : MonoBehaviour {
	
	public RaycastHit hit;
	public Vector3 directionRay;
	public int range = 20000;
	public GameObject player;
	public GameObject projectile;
	public GameObject[] targets;
	public static GameObject target;
	public float speed = 200.0f;
	bool isFired = SelfDest.isFired;
	bool isReloading;
	public Texture2D crosshair;
	public int zoom = 200;
	public int normal = 60;
	public float smooth = 40;
	public int bulletnumb = 12;
	public int magazine = 3;
	public AudioClip shoot;
	public AudioClip reload;
	public bool hashit = SelfDest.hashit;


	// Use this for initialization
	void Start () {
		player = GameObject.FindGameObjectWithTag("Player");
		isReloading = false;
		targets = GameObject.FindGameObjectsWithTag("Enemy");
	}
	
	// Update is called once per frame
	void Update () {
		directionRay = transform.TransformDirection(Vector3.forward);
		Debug.DrawRay(transform.position, directionRay * range, Color.red);
		if(Physics.Raycast(transform.position, directionRay, out hit, range)){
			if(hit.collider.gameObject.tag == "Enemy" && hashit == true){
			target = hit.collider.gameObject;
			}
		}
		if(Input.GetButton("Fire1") && bulletnumb >= 1){
			if(!isFired){
				isFired = true;
				GameObject bullet = Instantiate(projectile, transform.parent.position, transform.parent.rotation) as GameObject;
				bullet.rigidbody.velocity = transform.forward * speed;
				audio.PlayOneShot(shoot);
				bulletnumb--;
				Physics.IgnoreCollision(bullet.collider, player.collider);
				EnemyHealth eh = (EnemyHealth)target.GetComponent("EnemyHealth");
				eh.AdjustHealth(-30);
			    Invoke("Shoot", 0.45f);
			}
		}
			if(bulletnumb == 0){
				Invoke("Reload1", 0.75f);
			}
		if(Input.GetButton("Fire2") && isReloading == false){
			isReloading = true;
			Invoke("Reload2", 0.75f);
		}
	}

	void Shoot(){
		isFired = false;
	}
	
	void Reload1(){
		if(bulletnumb <= 0 && magazine >= 1){
			bulletnumb = 12;
			audio.PlayOneShot(reload);
			magazine--;
		}
	}
	
	void Reload2(){
		if(magazine >= 1){
			bulletnumb = 12;
			audio.PlayOneShot(reload);
			magazine--;
			isReloading = false;
		}
	}
	
	
	void OnGUI(){
		GUI.Box(new Rect(Screen.width/2, Screen.height/2, 10, 10), crosshair);
		GUI.Box(new Rect(10, 35, 40, 20), bulletnumb + "/" + magazine);
	}

}

Any help will be immensely appreciated. Thanks in advance

Apparently the error was from the enemyhealth script I put the health int variable static. Anyways I hope the above script helps anyone trying to make a basic attack system.