The man in the Sierra 1 sniper post at Waco and the Sierra 4 post at Ruby Ridge was FBI marksman Lon Tomohisa Horiuchi. Over the past seven years, he has become the most controversial law enforcement officer in America. For most of that time, the 45-year-old West Point graduate and former infantry officer has been in courtrooms or preparing his defense. At Ruby Ridge, Horiuchi shot and killed Weaver's wife, Vicki, 43, as she held their 10-month-old daughter behind the door of their cabin. He also shot and wounded Weaver, 44, and his friend, Kevin Harris. At Waco, Horiuchi fired into the burning building.