On a late Thursday night, John Wierwille and his family saw about 11 coyotes on his property in the Laurel Ridge neighborhood around 9 p.m. He threw stones at them to scare them off, and the coyotes ran away. All seemed good. But around 3:30 a.m. on Friday, Nov. 4, he heard his livestock guardian dog barking, so he got dressed and went outside to see what was happening. His dogs usually don’t bark unless they feel a threat or are warning off other creatures, “but they don’t bark otherwise because a bark is for a purpose,” he said. Wierwille...