How do I play trigger parameters properly in the animator controller /

I have two different enemy ai I only gotten one trigger parameter to play on one of my enemy ai . I name the trigger parameter the same as the other enemy ai . I change one of the enemy ai and the die animation still didn't work when I kill the enemy ai . The die animation is not set on loop . I also tried closing the animator tab and restarting . I deleted the parameter and re-adding the parameter press and die animation still don't work. Here is my script :

     // Exposed properties
         public bool Invincible { set { m_Invincible = value; } }
         public float MaxHealth { set { m_MaxHealth = value; } }
         public float MaxShield { set { m_MaxShield = value; } }
         public float CurrentHealth { get { return m_CurrentHealth; } }
         public float CurrentShield { get { return m_CurrentShield; } }
         public float ShieldRegenerativeAmount { set { m_ShieldRegenerativeAmount = value; } }
         public AudioClip deathClip;
         public bool isSinking;
         static Animator anim;
      
      void Start () 
      {
              anim = GetComponent<Animator> ();
      }
      
  
   
         // Internal variables
 #if ENABLE_MULTIPLAYER
         [SyncVar(hook = "SetHealthAmount")] 
 #endif
         private float m_CurrentHealth;
 #if ENABLE_MULTIPLAYER
         [SyncVar(hook = "SetShieldAmount")]
 #endif
         private float m_CurrentShield;
         private ScheduledEvent m_ShieldRegenerativeEvent;
         private float m_SpawnTime;
 
         // SharedFields
         protected float SharedProperty_MaxHealth { get { return m_MaxHealth; } }
         protected float SharedProperty_MaxShield { get { return m_MaxShield; } }
         protected float SharedProperty_CurrentHealth { get { return m_CurrentHealth; } }
         protected float SharedProperty_CurrentShield { get { return m_CurrentShield; } }
 
         // Component references
         protected GameObject m_GameObject;
         protected Transform m_Transform;
         private Rigidbody m_Rigidbody;
 
         /// <summary>
         /// Cache the component references and initialize the default values.
         /// </summary>
         protected virtual void Awake()
         {
             
            anim = GetComponent <Animator>();
             m_GameObject = gameObject;
             m_Transform = transform;
             m_Rigidbody = GetComponent<Rigidbody>();
 
             SharedManager.Register(this);
 
             m_CurrentHealth = m_MaxHealth;
             m_CurrentShield = m_MaxShield;
 
             // Register for OnRespawn so the health and sheild can be reset.
             EventHandler.RegisterEvent(m_GameObject, "OnRespawn", OnRespawn);
         }
 
 
 
 
 
 
 
  if (m_DeactivateOnDeath) {
                 Scheduler.Schedule(m_DeactivateOnDeathDelay, Deactivate);
                     GetComponent<AudioSource>().Play();
                     anim.SetTrigger("Dead");
                 anim.SetTrigger("death");
 
                     
             }
         }