Concert Shooter Was ‘Below Everyone’s Radar’

The worst mass shooting in modern U.S. history raises tough questions about how to guard against attacks on open crowds – and puts more responsibility on the crowd itself to look out for threats and escape routes in any public setting, former NYPD Detective Sergeant Joseph Giacalone told The Cipher Brief.

“Every time you go to a venue, you’re going to have to look for emergency exits. Unfortunately, that’s the mindset you have to be in now,” Giacalone said. “When you’re doing your security plans for major events, you’re going to have to go to the surrounding areas that are in sight and sound of your venue.”