MSNBC

New audio from the chilling dash-cam tape of a South Carolina state trooper shooting an unarmed man has prompted even more questions. Chris Hayes examines the mindset of the now-former trooper with psychology professor Phillip Atiba Goff.

New audio from the chilling dash-cam tape of a South Carolina state trooper shooting an unarmed man has prompted even more questions. Chris Hayes examines the mindset of the now-former trooper with psychology professor Phillip Atiba Goff.