Sorry about your loss...I know how you feel. I was loosing a few birds here and there from predators with coons being the prime suspect. But, I got a sheepdog last summer, and now that he is mature he keeps everything away.
Are you sure it is coons? When I was having my coon trouble; I had a near total loss with my OEG. I thought (and still think it might have been???) coons. But then, I shot a coyote 2 days later digging under my Serama Coop; fortunately, they have a concrete block floor. So I did like you; I went to war. I put a solar powered hot wire around my coops, and I set live traps & snares. I bait the live traps with peanutbutter and jelly; The coons think this is delicious, and I even caught a fox in a big live trap with PB&J. But, I kept catching em. Tons of coons, opossiums, 2 skunks, a fox, a small long tailed mink, and coyotes. Since my dog figured it out, I havent lost a bird. Heck, my walnut and hickory trees are even squirell free. Nothing beats a good dog!