A friend of mine from Alaska too a series of photos of a coyote killing a Dall sheep kid at Kluane Lake in the Yukon. After it was done he got out to get some close ups and the coyote was very aggressive and chased him back into his car. Coyotes do more damage than any other predator, but because they are small or common, they get overlooked when blaming predators for diminishing game animals.