I hear you all. I am so sorry @sparklez for the loss of your baby girl 
I've owned chickens for just over a year now and I rear them straight run from chicks. Culling off Roos was really alot harder than I thought it was going to be. I had bonded with two Roos the first year and because they were both Barnyard mutt birds no one wanted to rehome them. So I had to make a descision, I could only keep one. After a few months, the Roo I chose turned into a monster and I ended up culling him too. I always felt I made the wrong choice. I've put myself in the dilema again, I have a small chick who's becoming my favourite and it looks to be a Roo. So I'm keeping it for now and hopefully he/she will be a little darling, but damn it's really hard when they become so friendly.
Not lost any chickens to predators (yet, hopefully never) so I can't imagine how stressful and upsetting that is when you find them carnage left behind. You learn their little personalities and it must be such a shock when you don't expect it to happen.

I've owned chickens for just over a year now and I rear them straight run from chicks. Culling off Roos was really alot harder than I thought it was going to be. I had bonded with two Roos the first year and because they were both Barnyard mutt birds no one wanted to rehome them. So I had to make a descision, I could only keep one. After a few months, the Roo I chose turned into a monster and I ended up culling him too. I always felt I made the wrong choice. I've put myself in the dilema again, I have a small chick who's becoming my favourite and it looks to be a Roo. So I'm keeping it for now and hopefully he/she will be a little darling, but damn it's really hard when they become so friendly.
Not lost any chickens to predators (yet, hopefully never) so I can't imagine how stressful and upsetting that is when you find them carnage left behind. You learn their little personalities and it must be such a shock when you don't expect it to happen.
It's so hard... I know. Why it always seems to be a favorite, who knows. All I can tell you is, there is not a soul here on BYC that has not been where you are, who has not felt what you're feeling. Our chickens are precious to us, they are sweet and vulnerable and depend on us, and we aim to do right by them, to protect them, come what may ... and then there is that day when our defenses fail and a dog gets in or a chicken gets left out somehow, or a raccoon or a snake or, or ... and we are devastated and there is no fixing what is broken. Please try to forgive yourselves and each other, to know that you and your DH did the best you could but these things happen ... and in future you will check and double check and communicate better and by God's good grace it won't happen again. 