May 14 (UPI) -- A Las Vegas man has been sentenced to more than three years' imprisonment after pleading guilty to threatening to kill a U.S. senator from Nevada and the family members of two other U.S. senators. U.S. District Judge Jennifer Dorsey sentenced John Anthony Miller on Tuesday to a 46-month prison term to be followed by three years of supervised release. "Threats against these U.S. senators and their families were vile, dehumanizing and shameful," Sue Bai, head of the Justice