LITTLE FALLS, Minn. — A Minnesota man who killed two teenagers who broke into his home can be heard on an audio recording talking to himself for hours after the shooting and at one point, apparently describing the slain teens as "vermin." Byron Smith, of Little Falls, faces first-degree premeditated murder charges in the deaths of 18-year-old Haile Kifer and 17-year-old Nick Brady on Thanksgiving Day in 2012. Smith, 65, claimed he was defending himself and feared for his life after several break-ins at his home. Prosecutors, though, say Smith planned the killings. They say he sat in a chair...