Nope, they assume that wolverine killed all those sheep. Could have been a pack of wolves or coyotes and the lone wolverine was just munching on their kill.
Wolves are also thrill killers.
I'm having trouble visualizing a short-legged animal that lopes along the ground being able to take down and kill multiple sheep in one area.
I get it if the wolverine stalked a sheep and got it by surprise, but the rest would have scattered.
What it do, tell them the funniest joke in the world and wait for them to drop?