There is an old joke about the neurtering of coyotes. The farmer had sheep being killed by coyotes and they were at a meeting discussing the problem, and a tree hugger happened to be there and suggested catching and neutering the coyotes, the farmer replied lady the coyotes aren't screwing my sheep to death they are just killing and eating them.
ha...I think I had one, or possibly a mountain lion kill a big 90 lb athletic boerboel mastiff of mine. He was defending the chicken coop and was gutted from sternum to private with a precession cut like a surgeon did it, guts spilled out a little bit and no other defense wounds. He was a stud and killed many of varmints for me, caught a few pigs in a trap and wouldnt let anyone in the yard. I never have known what got him for sure but I quit letting my kids go down there un attended after that, still makes me wonder. My neighbor had goats and when the yotes got one they would eat the guts out and leave the carcass so it made me think yote but idk...