Add object on trigger to array, then cast a ray at all objects in the array

As a part of my AI script, i want a bad-guy to target NPC civillians within range, then, if the bad-guy can see the civillians, open fire on them.

Basicly, my baddie has a sphere collider (set to isTrigger) which is quite large and detects when a civilian NPC passes into it. At this point, i'm trying to add that civilian to an array then point a raycast at it.

What's happening, is that whenever a civilian enters the 'trigger zone', a raycast is created, but it points in a seemingly random direction and only one raycast is being created at a time.

When i can do this, i'll mess with the behaviour of the Raycast, but right now i just want a raycast pointing in the direction of every civilian who comes in range.

Help?

 var target : GameObject;
 
 var newCiv;
 
 function OnTriggerEnter (targets : Collider) {
 if (targets.tag == "civilian"){
         print ("civilian In Range");
         
         newCiv = targets.gameObject;
         print(newCiv);
     } 
 }
 
         
 function Update () {
 civPos = newCiv.gameObject.transform.position;
 var civTargets = new Array();
 
 civTargets.Add(civPos);
 print(civTargets.length);
 
 var hit : RaycastHit;
 
 for (i=0; i <= civTargets.length; i ++){
     Debug.DrawRay(transform.position, civPos, Color.green);
     if (Physics.Raycast(transform.position, civPos, hit))
         {
             Debug.Log("Targeting Civilian");
         }
     }
 }

Thanks as always, Tom :)