Angry students, parents confront Rubio for gun-control

TALLAHASSEE, Fla. -- Republican Sen. Marco Rubio is being challenged by angry students, teachers and parents who are demanding stronger gun-control measures after a school shooting that killed 17 people at a Florida high school. One of those confronting Rubio at a CNN’s “Stand Up” town hall Wednesday night was Frank Guttenberg, whose 14-year-old daughter...