Player Character Not being destroyed. unity 5.3

Ill make this one simple:

• Player is tagged Player. Its not being destroyed by contact with any form of destroy by contact script such as the one below.

• Player is using a Character controller instead of a capsule collider which is necessary for the physics effect needed such as step detection.

           using UnityEngine;
           using System.Collections;
           using UnityEngine.UI;
       
       public class DestroyByContact : MonoBehaviour
       {
       
      public GameObject explosion;
       public GameObject playerExplosion;
       public int scoreValue;
       private GameController gameController;
   
           void Start()
           {
               GameObject gameControllerObject = GameObject.FindWithTag("GameController");
               if (gameControllerObject != null)
               {
                   gameController = gameControllerObject.GetComponent<GameController>();
               }
               if (gameController == null)
               {
                   Debug.Log("Cannot find 'GameController' script");
               }
           }
       
           void OnTriggerEnter(Collider other)
           {
               if (other.CompareTag("Barrier") || other.CompareTag("Enemy"))
               {
                   return;
               }
       
               if (explosion != null)
               {
                   Instantiate(explosion, transform.position, transform.rotation);
               }
       
               if (other.tag == "Player")
               {
                   Instantiate(playerExplosion, other.transform.position, other.transform.rotation);
               
               }
       
               gameController.AddScore(scoreValue);
               Destroy(other.gameObject);
               Destroy(gameObject);
           }
       }
  
  

• I can shoot enemies, score points, etc and blow them up. They are not destroying player on contact like they are suppose too.

• Where do i edit this script in unity 5.3 since there is no "trigger" settings in the character controller?

• The following is the player movement script i'm using because it works properly and does not allow my character to pass through other object colliders.

   //Variables
       public float speed = 3.0F;
       public float rotateSpeed = 3.0F;
       public float jumpSpeed = 8.0F;
       public float gravity = 20.0F;
       private Vector3 moveDirection = Vector3.zero;
   
   
       void Update()
       {
           CharacterController controller = GetComponent<CharacterController>();
           //Feed moveDirection with input.
           {
               transform.Rotate(0, Input.GetAxis("Horizontal") * rotateSpeed, 0);
               Vector3 forward = transform.TransformDirection(Vector3.forward);
               float curSpeed = speed * Input.GetAxis("Vertical");
               controller.SimpleMove(forward * curSpeed);
               //Jumping
               if (Input.GetButton("Jump"))
                   moveDirection.y = jumpSpeed;
           }
           //Applying gravity to the controller
           moveDirection.y -= gravity * Time.deltaTime;
           //Making the character move
           controller.Move(moveDirection * Time.deltaTime);
       }
   }