That's what I was thinking... if they were slit, they'd bleed all over their fur, I'd think. Is it at all possible that their necks broke after they were frozen? If they were vacuum sealed like you said, maybe the vacuum caused their heads to move a certain way that cracked them. I know several of the fuzzy rats I ordered online literally broke in half. I think they were frozen so hard, that they just cracked and broke in half like glass. Just a thought...
...or then again, that guy could be Norman Bates.![]()