NEW YORK, NY - DECEMBER 20: New York City Police Commissioner William J. Bratton (left) is joined by Mayor Bill de Blasio at a news conference at Woodhull Hospital following the killing of two New York City police officers

Tempers are flaring after 28-year-old Ismaaiyl Brinsley shot and killed Officers Rafael Ramos and Wenjian Liu execution-style outside of the Tompkins Houses in Bedford-Stuyvesant yesterday.

Brinsley had reportedly pledged online to kill two officers as retribution for the lack of justice shown toward Mike Brown and Eric Garner cases. Since the news broke, Rev. Al Sharpton and other organizers of the recent protests have publicly denounced the murders and made it clear they in no way support the actions taken by the alleged vigilante.

Yet this has case understandably created an even bigger divide between the NYPD and its constituents. Saturday evening, De Blasio and Police Commissioner Bill Bratton held a press conference at Woodhull Hospital. As they weaved through a sea of officers, the officers turned their backs to him.

See the PIX News 11 footage of the tense moment below.