IE 11 is not supported. For an optimal experience visit our site on another browser.
  • UP NEXT

    Supreme Court likely to hear arguments on regulating ghost guns in next term

    04:08
  • NBC News poll: RFK Jr. candidacy hurts Trump numbers more than Biden

    03:07
  • Climate change: the connection between land and sea

    04:20
  • Flipping the Script: Autistic musicians speak about performing as part of ASD Band

    05:26
  • Supreme Court considers how cities can enforce laws on homeless camps

    04:07
  • New series ‘The Tattooist of Auschwitz’ tells the story of Holocaust survivors finding love

    05:22
  • Curtain Call: ‘Hell’s Kitchen’ director speaks about new Alicia Keys Broadway show

    04:42
  • NYPD arrests 108 pro-Palestinian protesters at Columbia University

    05:15
  • Middle East on edge after Israel launches strike inside Iran

    04:04
  • Senate Democrats expected to table or dismiss impeachment articles against Mayorkas

    01:23
  • Israeli war cabinet meets to plan response to Iran’s aerial assault

    03:07
  • House to send articles of impeachment against Mayorkas to the Senate

    02:16
  • Supreme Court hears Jan. 6 obstruction challenge that could affect Trump's case

    02:25
  • Johnson to advance Israel, Ukraine and Taiwan aid as separate bills

    01:31
  • Jury selection begins in Trump hush money criminal trial

    03:49
  • What you need to know ahead of Trump's New York hush money trial

    04:03
  • March inflation report shows costs rose 0.4% on a monthly basis

    03:16
  • Jack Smith urges Supreme Court to reject Trump's immunity claim

    01:18
  • Explainer: What happens during a solar eclipse?

    02:15
  • Solar eclipse will offer a unique window for scientific experiments

    04:17

How to spot the warning signs of a potential mass shooter

04:30

Following Monday’s deadly mass shooting at a school in Nashville, safety and security on campus is becoming top of mind for many parents, teachers and students. Author of “Stop the Killing: How to End the Mass Shooting Crisis” and former FBI agent executive, Katherine Schweit, joins News NOW to share how to spot the early warning signs that could help prevent mass shootings and potentially save lives.