Few were surprised on Dec. 7, 2015, when U.S. Attorney General Loretta Lynch announced a civil rights investigation of the Chicago Police Department (CPD). The city had recently released a dash cam video of officer Jason Van Dyke killing 17-year-old Laquan McDonald. Graphic footage showed the officer firing a hail of bullets at the black teen as he walked away.

In wake of latest deaths, protesters say to Mayor Rahm Emanuel: 'You failed us before, but now's your time to stand up, or step down.'

The photo shows two white Chicago Police officers posing with an unidentified black man. The officers — Timothy McDermott and Jerome Finnigan — are holding rifles as the black man lies on the floor with a dazed look on his face and with antlers on his head as if he were a prized, big buck finally hunted down.