Vermont Sen. Bernie Sanders called it "horrific" and "unthinkable" and said it underscores the need for gun control measures.
"Oh, it's horrific, it's unthinkable. And just hopes go out to all those who were shot that they can recover," the Democratic presidential contender said Sunday on NBC's "Meet the Press."
"And I've got to tell you, 25 years ago, I believe that in this country, we should not be selling automatic weapons which are designed to kill people," Sanders said. "We have got to do everything that we can on top of that to make sure that guns do not fall into the hands of people who should not have them, criminals, people who are mentally ill. So that struggles continues."