So did they ever find the body of the roommate?
OK, getting serious now. To me, it looks like a Savage 340. The 340 uses a single lug locking system and detachable magazine. Open the action and look at the bolt. There should be only one locking lug. If there is, then I am 99% sure it is a 340. The side scope mount also suggests that it is a 340 looking at the hole spacing. (That you can barely make out in the photo.) Hope this helps.