void Update () {
			foreach (Transform agentPosition in agentsTransform) {
				if (CanSeeAgent (agentPosition) && state != State.Arresting && !agentPosition.GetComponent<Agent> ().agentIsDown && !enemyDown) {
					agentVisibleTimer += Time.deltaTime;
					StopAllCoroutines ();
					state = State.Arresting;
					aiCharacterControl.SetTarget (agentPosition);
					StartCoroutine (AttackAgent (agentPosition));
					// StartCoroutine (SpawnProjectile (agentPosition)); // TODO switch to Coroutines
				} else if (state == State.Arresting && !enemyDown) {
					float distanceToAgent = Vector3.Distance (agentPosition.position, transform.position);
					if (distanceToAgent >= chaseRadius && state != State.Searching) {
						agentVisibleTimer -= Time.deltaTime;
						StopAllCoroutines ();
						// StopCoroutine (SpawnProjectile (agentPosition));
						// aiCharacterControl.SetTarget (transform);
						StartCoroutine (SearchForAgent ());
					}
				}
				agentVisibleTimer = Mathf.Clamp (agentVisibleTimer, 0, timeToSpotAgent);
				spotLight.color = Color.Lerp (originalSpotLightColour, Color.red, agentVisibleTimer / timeToSpotAgent);

				if (agentVisibleTimer >= timeToSpotAgent) {
					if (OnEnemyHasSpottedAgent != null) {
						OnEnemyHasSpottedAgent ();
					}
				}
			}
		}

IEnumerator AttackAgent (Transform agentPoint) {
			animator.SetTrigger ("Shooting");
			yield return new WaitForSeconds (0.3f);
			agentPoint.GetComponent<Agent> ().TakeDamage ();
		}