Bethany Lynn Stephens had been gone for about a day since she left to walk her dogs. So her father went out to look for her at the area she frequented. There, authorities say, he found her two dogs, guarding what he first thought was an animal carcass. “Much to his horror, discovered that it was not,” Goochland County Sheriff Jim Agnew told reporters at a news conference Friday. Investigators in Goochland, Va., a rural community about 30 miles outside of Richmond, say the petite, 5-foot-1 young woman, who weighed a little more than 100 pounds, was mauled to death by her dogs, which...