Yotes will drag a deer without any effort especially if its a pack of them. Is it possibly a cougar? That would be insane to get a pic of and then a shot
they'd make one heck of a rug.
I have also tried the deer carcass thing when I first got my camera, but I made the mistake of putting out the camera right away then took it down after two weeks. two weeks later I was out doing somthing and all that was left was the top of the skull and the skin.... and it was moved 70 yards