Preditor attack. What did this?

[blackie's maiden]

Either I missed it the first time or something came.back during the day and ate the meat off.the front legs only from the knees down. The neck, even neck bone was completely gone so i guess they ate that too. Her collar laid right there too, no blood stains. Maybe she died first, i don't know. I read that the way you tell if an animal was killed.by preditor.vs one dying first and then scavanged is whether or not there are blood stains. We didn't see any. She was one.of.our older goats.but yesterday seemed fat and healthy.