PIX11 -- Police officers turned their backs on Mayor Bill de Blasio as he walked into the police press conference about the two NYPD officers shot and killed execution-style in Brooklyn.

De Blasio weaved through the officers on his way to the presser with Police Commissioner Bill Bratton at Woodhull Hospital Saturday evening.

Officers Rafael Ramos and Wenjian Liu were taken to Woodhull after 28-year-old Ismaaiyl Brinsley, shot and killed them execution style outside of the Tompkins Houses in Bedford-Stuyvesant before 3 p.m.