NYPD Officer who killed Eric Garner used forbidden chokehold

07:05

The NYPD officer who killed Eric Garner nearly five years ago is facing a reckoning with a disciplinary trial, with testimony from internal NYPD investigators revealing the officer did use a forbidden illegal chokehold on Garner. Attorney Maya Wiley, who previously led The New York City Civilian Complaint Review Board, the oversight agency reviewing the case joins MSNBC Chief Legal Correspondent Ari Melber.