Having Trouble Disabling Script Components.

In my Script Below i want to disable the Character Controller Script on my player. The Script Name is First Person Controller. For me it looks like i cant disable it with C# Script. Script Below.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Health : MonoBehaviour {
    public Transform CorpseSpawnPoint;
    public GameObject Prefab;
    public int health = 100;
    public int maxhealth = 100;
	private bool DeathSEQDone;
	private CharacterController FPSController;

    // Use this for initialization
    void Start () {
        health = 100;
        maxhealth = 100;
		DeathSEQDone = false;
		FPSController = GetComponent<CharacterController>();

	// Update is called once per frame
	void Update ()
		if (DeathSEQDone == false) {

			if (health <= 0) {
				Debug.Log ("Ded");
				Instantiate (Prefab, CorpseSpawnPoint.position, CorpseSpawnPoint.rotation);
				FPSController.enabled = false;

				DeathSEQDone = true;


For Me there is a Script Component And it looks like it disables the mouse moving the camera and all other controls on the character.