Greetings...

In short, my Unbound Dremora jumped off the College roof and is hanging out in Winterhold. The problem is that he attacks anything except my character there. Anyone know what I should do about him? I'm on 360.

He used to be cool on the roof, no one else up there except for the occasional dragon. During the quest where the ghost blobs attack Winterhold (Staff of Magnus questline) he jumped off the roof and joined me in the fight there. The battle was at 4 am so no Winterhold citizens were outside at the time. Now he hangs out near the Jarl's front door and slays anything (including chickens) that touches the Winterhold exterior.
My spells and weapons do nothing to him; everything passes right through him.

I'm sure some of you have experienced issues with this Unbound being; from what I saw on various sites, some don't have him as being hostile.

There are enough NPC deaths in the game from other "accidents" so I don't need him to thin the populations even more.

Is there an actual expiration to him, or is he permanent?

Any help is appreciated.