We heard a crash. a few minutes later I hear, "Bro, bro, come
  here" - and I was up on the lanai and he was down in the barn
  about 100 ft away. I come flying down the hill and my brother
  says, "look, look!" but I wasn't able to see him. But Mike saw
  him just before that and said he was HUGE - about 6 feet long
  and tall with thick legs and big paws, dragging the rest of the
  goat out. And this was at 7pm! Yikes. I'm in the barn now,
  alone, typing this message - so its a little strange but
  apparently they don't attack humans, so I'm not too concerned
  about that. Poor fred didn't stand a chance but he lasted 8+
  years. "