The video shot in Jack Foerschler’s barn shows his flock of sheep lying quietly in the dark... The flock seems peaceful, until the animals are suddenly startled. A nanosecond later, a blur leaps into the screen and tackles one of the sheep. The ewe is able to escape momentarily, jumping up from the creature’s clutches, running to the viewer’s left. But the invader is faster. It bounds to its feet and extends a claw toward its fleeing prey. The viewer can see its massive claws, slender muscular body and distinctively long tail. The culprit that killed four ewes, a ram...