Yeah, I miss my little brood dood....but I won't be applying some kind of scorched earth policy to dealing with any predators that may (or may not) have done it.
A foxes turf is about 1.5 - 2km. So it will remain close by with the rest of its litter for quite some time...I'm going to borrow a live trap from a hunter (that would be big enough to nab a coyote) and I will only set it during the day and put it away during the night.... and I will set it relatively close to the scene of the crime.
Whatever its going to be, I want to trap a predator in the area it was patrolling, during the hours it operates, and according to the way it kills chickens.... leaving me with as little doubt as possible.