Something's got you figured out. I'm sorry for your loss. Move our camera over to that side near the hole as it WILL be back. You need to tighten up your run because now it knows how to get in. This is why a lot of people bury their skirt in the ground.
Is the pile of feathers outside of the coop? Are there feathers around the hole that make it look like it was pulled through? Was it taken during the day? If it was taken during the day I'd bet it was a coyote. That's exactly what I find when a coyote gets one of mine while they're free-ranging. I no longer free range unless we're home and working in the yard. They keep coming back for more.
I don't think it was the dog. Dogs usually make a big mess of feathers whereas coyotes leave a pile. At least that's my experience.
Is the pile of feathers outside of the coop? Are there feathers around the hole that make it look like it was pulled through? Was it taken during the day? If it was taken during the day I'd bet it was a coyote. That's exactly what I find when a coyote gets one of mine while they're free-ranging. I no longer free range unless we're home and working in the yard. They keep coming back for more.
I don't think it was the dog. Dogs usually make a big mess of feathers whereas coyotes leave a pile. At least that's my experience.