I am wondering the same thing as a previous poster: could the dogs have gotten out somehow? Perhaps the door wasn't quite latched? Also a thought...it is a possibility that someone tried to break in and found the dogs? That's probably a remote possibility but on my mind since we have been having day break-ins in our area. Apparently the vast majority of break-ins are during the day, and often through an unlocked door.
Also, if it was a neighbor, chances are that 'trespassing' was the last thing on their mind. I would also bet they had no malicious intent in trying to 'help' the dogs, if that's what happened. A stupid decision? Yes. But criminal? Probably not. It might ease your mind to ask around and see if anyone knows anything. Sorry for the loss of your chickens.
