Spawn Multiple Monsters

Should be simple, but it's not as simple as I though. I have monsters in an XML list for waves of enemies, and I need to spawn multiple enemies per wave. However, when I do so with my current code, both spawn, but only one will spawn correctly, and he other will not move, nor will it spawn correctly. I think I need to call upon each element in the array, but I don't know how.

 public var spawnedMob:GameObject = null;
 public var monsterData:MobData = null;
 private var waveIndex:uint = 0;
 public var monsterPrefab:GameObject;
 private var wavesInfo:WavesData = null;
 private var wavesArray:Array = null;

 function Start () {
     monsterData = gameObject.GetComponent( MobData );    
     wavesInfo = gameObject.GetComponent( WavesData );
 }

 function DataReady(){
     wavesArray = wavesInfo.waves;
 }


 function Update () {
     if ( wavesArray ){
         if ( spawnedMob == null ){
             if ( waveIndex < wavesArray.length ){                
                 var currentWave:WaveInfo = wavesArray[waveIndex];                
                 var monsterSpawnIndex:float = parseFloat( currentWave.indexString );                    
                 var monsterInfo:MobInfo = monsterData.mobInfoArray[monsterSpawnIndex];                
                 var waveSplitter =  currentWave.indexString.Split(","[0]);
             
             for( var i:int = 0; i < waveSplitter.length; i++)
             {
                 print(waveSplitter[i]);
                 spawnedMob = Instantiate( monsterPrefab, Vector3( 100, 10, 100 ), Quaternion.identity );
             }
                             
             //Instantiate( monsterPrefab, Vector3( 80, 10, 80 ), Quaternion.identity );
             var entityScript:MonsterCharacter = spawnedMob.GetComponent( MonsterCharacter );                
             entityScript.InitWithMobInfo( monsterInfo );                
             spawnedMob.SendMessage( "SetPlayer", null, SendMessageOptions.DontRequireReceiver );                
             waveIndex++;
         }
     }
 }

}