Thats messed up. Check the local pawn shop etc. Had to be someone fishing. I don't see some loser just walking out to some random shelter that far out. Probably had there eyes on it. Most Outdoorsmen are honest some are not. I would not be surprised if you have some how crossed paths with the person. My brothers house was robbed once he had surveillance footage. It was someone he knew like a friend of a friend etc. I have no desire to take what is not mine. Hope you find it. Good luck.