Mikee,
I am so sorry! Unfortunately I know exactly how mad you feel. I lost 6 hens the day after Easter. I went outside to feed them and there was one body with no head or neck, another body in my garden and a third in my neighbors yard. The three others were MIA. I thought I forgot to close the gate and a predator got in. The following week I got three RIR, made sure the gate was closed and they were still missing the next day. People or animal? Not a sound was heard on either occasion and neither of my German Shepherds sounded off which was the most unusual thing.
SO, I purchased a survailence (sp?)camera hunters use, bought 2 locks for the gate, wrap the coop in bungee cords and keep a light shining on the run and coop. So far so good. 2 Marans, 4 Wellsummers and 1 Americana are safe and sound.
I hope you never have to go through that again. It makes your heart heavy.
Mary Ann