Minnesota shooting suspect makes appearance in federal court

With Minnesota shooting suspect Vance Boelter in court today, attention is drawn on the local law enforcement’s ability to act quickly and arguably prevent more attacks from occurring. NBC News’ Tom Winter reports more. Retired FBI Agent and Criminal Profiler Mary Ellen O’Toole joins Katy Tur to provide her expertise on the “predatory behavior” people like Boelter display, which can lead law enforcement to get ahead of these attacks.